Clean up merge
This commit is contained in:
Mark McGranaghan
parent
ee5c86daa9
commit
78e1fd61ec
31
public/arrays
generated
31
public/arrays
generated
@ -33,7 +33,7 @@ specific length.</p>
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@ -42,10 +42,8 @@ specific length.</p>
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</td>
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<td class="code leading">
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<a href="http://play.golang.org/p/W7NwfDq8Vdw">
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<img title="Run code" class="run" src="data:image/png;base64,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" />
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</a>
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<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
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<a href="http://play.golang.org/p/W7NwfDq8Vdw"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
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<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
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</pre></div>
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</td>
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@ -57,7 +55,7 @@ specific length.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
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<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
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</pre></div>
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</td>
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@ -69,7 +67,7 @@ specific length.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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</pre></div>
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</td>
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@ -85,7 +83,7 @@ zero-valued, which for <code>int</code>s means <code>0</code>s.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">a</span> <span class="p">[</span><span class="mi">5</span><span class="p">]</span><span class="kt">int</span>
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">a</span> <span class="p">[</span><span class="mi">5</span><span class="p">]</span><span class="kt">int</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"emp:"</span><span class="p">,</span> <span class="nx">a</span><span class="p">)</span>
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</pre></div>
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@ -101,7 +99,7 @@ zero-valued, which for <code>int</code>s means <code>0</code>s.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">a</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span> <span class="p">=</span> <span class="mi">100</span>
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<div class="highlight"><pre> <span class="nx">a</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span> <span class="p">=</span> <span class="mi">100</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"set:"</span><span class="p">,</span> <span class="nx">a</span><span class="p">)</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"get:"</span><span class="p">,</span> <span class="nx">a</span><span class="p">[</span><span class="mi">4</span><span class="p">])</span>
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</pre></div>
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@ -116,7 +114,7 @@ zero-valued, which for <code>int</code>s means <code>0</code>s.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">a</span><span class="p">))</span>
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<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">a</span><span class="p">))</span>
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</pre></div>
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</td>
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@ -130,7 +128,7 @@ in one line.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">b</span> <span class="o">:=</span> <span class="p">[</span><span class="mi">5</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">}</span>
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<div class="highlight"><pre> <span class="nx">b</span> <span class="o">:=</span> <span class="p">[</span><span class="mi">5</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">}</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"dcl:"</span><span class="p">,</span> <span class="nx">b</span><span class="p">)</span>
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</pre></div>
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@ -146,7 +144,7 @@ structures.</p>
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</td>
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<td class="code">
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">twoD</span> <span class="p">[</span><span class="mi">2</span><span class="p">][</span><span class="mi">3</span><span class="p">]</span><span class="kt">int</span>
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">twoD</span> <span class="p">[</span><span class="mi">2</span><span class="p">][</span><span class="mi">3</span><span class="p">]</span><span class="kt">int</span>
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<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">2</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
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<span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">j</span> <span class="p"><</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
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<span class="nx">twoD</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="nx">j</span><span class="p">]</span> <span class="p">=</span> <span class="nx">i</span> <span class="o">+</span> <span class="nx">j</span>
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@ -171,7 +169,7 @@ when printed with <code>fmt.Println</code>.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre><span class="gp">$</span> go run arrays.go
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<div class="highlight"><pre><span class="gp">$</span> go run arrays.go
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<span class="go">emp: [0 0 0 0 0]</span>
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<span class="go">set: [0 0 0 0 100]</span>
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<span class="go">get: 100</span>
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@ -191,7 +189,7 @@ typical Go. We’ll look at slices next.</p>
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</td>
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<td class="code empty">
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</td>
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</tr>
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@ -206,5 +204,10 @@ typical Go. We’ll look at slices next.</p>
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by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/arrays">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
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</p>
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</div>
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<script>
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var codeLines = [];
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codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var a [5]int\u000A fmt.Println(\"emp:\", a)\u000A');codeLines.push(' a[4] = 100\u000A fmt.Println(\"set:\", a)\u000A fmt.Println(\"get:\", a[4])\u000A');codeLines.push(' fmt.Println(\"len:\", len(a))\u000A');codeLines.push(' b := [5]int{1, 2, 3, 4, 5}\u000A fmt.Println(\"dcl:\", b)\u000A');codeLines.push(' var twoD [2][3]int\u000A for i := 0; i \x3C 2; i++ {\u000A for j := 0; j \x3C 3; j++ {\u000A twoD[i][j] = i + j\u000A }\u000A }\u000A fmt.Println(\"2d: \", twoD)\u000A}\u000A');codeLines.push('');codeLines.push('');
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</script>
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<script src="site.js" async></script>
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</body>
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</html>
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33
public/atomic-counters
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33
public/atomic-counters
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@ -37,7 +37,7 @@ counters</em> accessed by multiple goroutines.</p>
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</td>
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<td class="code empty leading">
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</td>
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</tr>
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@ -46,10 +46,8 @@ counters</em> accessed by multiple goroutines.</p>
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</td>
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<td class="code leading">
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<a href="http://play.golang.org/p/KDr9EMMPMgi">
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<img title="Run code" class="run" src="data:image/png;base64,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" />
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</a>
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<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
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<a href="http://play.golang.org/p/KDr9EMMPMgi"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
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<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
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</pre></div>
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</td>
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@ -61,7 +59,7 @@ counters</em> accessed by multiple goroutines.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
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<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
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<span class="kn">import</span> <span class="s">"time"</span>
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<span class="kn">import</span> <span class="s">"sync/atomic"</span>
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</pre></div>
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@ -75,7 +73,7 @@ counters</em> accessed by multiple goroutines.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
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</pre></div>
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</td>
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@ -89,7 +87,7 @@ counters</em> accessed by multiple goroutines.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">ops</span> <span class="kt">uint64</span>
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<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">ops</span> <span class="kt">uint64</span>
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</pre></div>
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</td>
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@ -104,7 +102,7 @@ once a millisecond.</p>
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">50</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
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<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">50</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
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<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
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<span class="k">for</span> <span class="p">{</span>
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</pre></div>
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@ -122,7 +120,7 @@ address of our <code>ops</code> counter with the
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">atomic</span><span class="p">.</span><span class="nx">AddUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">ops</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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<div class="highlight"><pre> <span class="nx">atomic</span><span class="p">.</span><span class="nx">AddUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">ops</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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</pre></div>
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</td>
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@ -135,7 +133,7 @@ address of our <code>ops</code> counter with the
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
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<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
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<span class="p">}</span>
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<span class="p">}()</span>
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<span class="p">}</span>
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@ -151,7 +149,7 @@ address of our <code>ops</code> counter with the
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</td>
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<td class="code leading">
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<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
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<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
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</pre></div>
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</td>
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@ -169,7 +167,7 @@ fetch the value.</p>
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</td>
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<td class="code">
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<div class="highlight"><pre> <span class="nx">opsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">ops</span><span class="p">)</span>
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<div class="highlight"><pre> <span class="nx">opsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">ops</span><span class="p">)</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"ops:"</span><span class="p">,</span> <span class="nx">opsFinal</span><span class="p">)</span>
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<span class="p">}</span>
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</pre></div>
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@ -189,7 +187,7 @@ fetch the value.</p>
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</td>
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<td class="code leading">
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|
||||
<div class="highlight"><pre><span class="gp">$</span> go run atomic-counters.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run atomic-counters.go
|
||||
<span class="go">ops: 41419</span>
|
||||
</pre></div>
|
||||
|
||||
@ -204,7 +202,7 @@ state.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -219,5 +217,10 @@ state.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/atomic-counters">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000Aimport \"sync/atomic\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var ops uint64\u000A');codeLines.push(' for i := 0; i \x3C 50; i++ {\u000A go func() {\u000A for {\u000A');codeLines.push(' atomic.AddUint64(&ops, 1)\u000A');codeLines.push(' time.Sleep(time.Millisecond)\u000A }\u000A }()\u000A }\u000A');codeLines.push(' time.Sleep(time.Second)\u000A');codeLines.push(' opsFinal := atomic.LoadUint64(&ops)\u000A fmt.Println(\"ops:\", opsFinal)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/base64-encoding
generated
29
public/base64-encoding
generated
@ -33,7 +33,7 @@ encoding/decoding</a>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ encoding/decoding</a>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/y_QTcqdkvZh">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/y_QTcqdkvZh"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ save us some space below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nx">b64</span> <span class="s">"encoding/base64"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nx">b64</span> <span class="s">"encoding/base64"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -73,7 +71,7 @@ save us some space below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ save us some space below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">data</span> <span class="o">:=</span> <span class="s">"abc123!?$*&()'-=@~"</span>
|
||||
<div class="highlight"><pre> <span class="nx">data</span> <span class="o">:=</span> <span class="s">"abc123!?$*&()'-=@~"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -102,7 +100,7 @@ convert our <code>string</code> to that type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sEnc</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">StdEncoding</span><span class="p">.</span><span class="nx">EncodeToString</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">data</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">sEnc</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">StdEncoding</span><span class="p">.</span><span class="nx">EncodeToString</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">data</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">sEnc</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -118,7 +116,7 @@ well-formed.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sDec</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">StdEncoding</span><span class="p">.</span><span class="nx">DecodeString</span><span class="p">(</span><span class="nx">sEnc</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">sDec</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">StdEncoding</span><span class="p">.</span><span class="nx">DecodeString</span><span class="p">(</span><span class="nx">sEnc</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">sDec</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
@ -134,7 +132,7 @@ format.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">uEnc</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">URLEncoding</span><span class="p">.</span><span class="nx">EncodeToString</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">data</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">uEnc</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">URLEncoding</span><span class="p">.</span><span class="nx">EncodeToString</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">data</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">uEnc</span><span class="p">)</span>
|
||||
<span class="nx">uDec</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">b64</span><span class="p">.</span><span class="nx">URLEncoding</span><span class="p">.</span><span class="nx">DecodeString</span><span class="p">(</span><span class="nx">uEnc</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">uDec</span><span class="p">))</span>
|
||||
@ -157,7 +155,7 @@ but they both decode to the original string as desired.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run base64-encoding.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run base64-encoding.go
|
||||
<span class="go">YWJjMTIzIT8kKiYoKSctPUB+</span>
|
||||
<span class="go">abc123!?$*&()'-=@~</span>
|
||||
</pre></div>
|
||||
@ -171,7 +169,7 @@ but they both decode to the original string as desired.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="go">YWJjMTIzIT8kKiYoKSctPUB-</span>
|
||||
<div class="highlight"><pre><span class="go">YWJjMTIzIT8kKiYoKSctPUB-</span>
|
||||
<span class="go">abc123!?$*&()'-=@~</span>
|
||||
</pre></div>
|
||||
|
||||
@ -189,5 +187,10 @@ but they both decode to the original string as desired.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/base64-encoding">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import b64 \"encoding/base64\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' data := \"abc123!?$*&()\'-=@~\"\u000A');codeLines.push(' sEnc := b64.StdEncoding.EncodeToString([]byte(data))\u000A fmt.Println(sEnc)\u000A');codeLines.push(' sDec, _ := b64.StdEncoding.DecodeString(sEnc)\u000A fmt.Println(string(sDec))\u000A fmt.Println()\u000A');codeLines.push(' uEnc := b64.URLEncoding.EncodeToString([]byte(data))\u000A fmt.Println(uEnc)\u000A uDec, _ := b64.URLEncoding.DecodeString(uEnc)\u000A fmt.Println(string(uDec))\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/channel-buffering
generated
25
public/channel-buffering
generated
@ -37,7 +37,7 @@ those values.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -46,10 +46,8 @@ those values.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/mPoF-Xi-rip">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/mPoF-Xi-rip"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -61,7 +59,7 @@ those values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -73,7 +71,7 @@ those values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -87,7 +85,7 @@ those values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -102,7 +100,7 @@ concurrent receive.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o"><-</span> <span class="s">"buffered"</span>
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o"><-</span> <span class="s">"buffered"</span>
|
||||
<span class="nx">messages</span> <span class="o"><-</span> <span class="s">"channel"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -116,7 +114,7 @@ concurrent receive.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="o"><-</span><span class="nx">messages</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="o"><-</span><span class="nx">messages</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="o"><-</span><span class="nx">messages</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -134,7 +132,7 @@ concurrent receive.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-buffering.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-buffering.go
|
||||
<span class="go">buffered</span>
|
||||
<span class="go">channel</span>
|
||||
</pre></div>
|
||||
@ -153,5 +151,10 @@ concurrent receive.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-buffering">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' messages := make(chan string, 2)\u000A');codeLines.push(' messages \x3C- \"buffered\"\u000A messages \x3C- \"channel\"\u000A');codeLines.push(' fmt.Println(\x3C-messages)\u000A fmt.Println(\x3C-messages)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
23
public/channel-directions
generated
23
public/channel-directions
generated
@ -35,7 +35,7 @@ the program.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ the program.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/Jnn9_9hC48c">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/Jnn9_9hC48c"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ the program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -74,7 +72,7 @@ receive on this channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">ping</span><span class="p">(</span><span class="nx">pings</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">msg</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">ping</span><span class="p">(</span><span class="nx">pings</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">msg</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">pings</span> <span class="o"><-</span> <span class="nx">msg</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -90,7 +88,7 @@ receive on this channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">pong</span><span class="p">(</span><span class="nx">pings</span> <span class="o"><-</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">pongs</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">pong</span><span class="p">(</span><span class="nx">pings</span> <span class="o"><-</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">pongs</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">msg</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">pings</span>
|
||||
<span class="nx">pongs</span> <span class="o"><-</span> <span class="nx">msg</span>
|
||||
<span class="p">}</span>
|
||||
@ -105,7 +103,7 @@ receive on this channel.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">pings</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nx">pongs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nx">ping</span><span class="p">(</span><span class="nx">pings</span><span class="p">,</span> <span class="s">"passed message"</span><span class="p">)</span>
|
||||
@ -127,7 +125,7 @@ receive on this channel.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-directions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-directions.go
|
||||
<span class="go">passed message</span>
|
||||
</pre></div>
|
||||
|
||||
@ -145,5 +143,10 @@ receive on this channel.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-directions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func ping(pings chan\x3C- string, msg string) {\u000A pings \x3C- msg\u000A}\u000A');codeLines.push('func pong(pings \x3C-chan string, pongs chan\x3C- string) {\u000A msg := \x3C-pings\u000A pongs \x3C- msg\u000A}\u000A');codeLines.push('func main() {\u000A pings := make(chan string, 1)\u000A pongs := make(chan string, 1)\u000A ping(pings, \"passed message\")\u000A pong(pings, pongs)\u000A fmt.Println(\x3C-pongs)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/channel-synchronization
generated
29
public/channel-synchronization
generated
@ -36,7 +36,7 @@ you may prefer to use a <a href="waitgroups">WaitGroup</a>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ you may prefer to use a <a href="waitgroups">WaitGroup</a>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/8lmP8beav0p">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/8lmP8beav0p"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ you may prefer to use a <a href="waitgroups">WaitGroup</a>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -76,7 +74,7 @@ goroutine that this function’s work is done.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">done</span> <span class="kd">chan</span> <span class="kt">bool</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">done</span> <span class="kd">chan</span> <span class="kt">bool</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="s">"working..."</span><span class="p">)</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"done"</span><span class="p">)</span>
|
||||
@ -92,7 +90,7 @@ goroutine that this function’s work is done.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">done</span> <span class="o"><-</span> <span class="kc">true</span>
|
||||
<div class="highlight"><pre> <span class="nx">done</span> <span class="o"><-</span> <span class="kc">true</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -105,7 +103,7 @@ goroutine that this function’s work is done.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -119,7 +117,7 @@ notify on.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">done</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">bool</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">done</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">bool</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">done</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -134,7 +132,7 @@ worker on the channel.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">done</span>
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">done</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -151,7 +149,7 @@ worker on the channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-synchronization.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channel-synchronization.go
|
||||
<span class="go">working...done </span>
|
||||
</pre></div>
|
||||
|
||||
@ -167,7 +165,7 @@ started.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -182,5 +180,10 @@ started.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-synchronization">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func worker(done chan bool) {\u000A fmt.Print(\"working...\")\u000A time.Sleep(time.Second)\u000A fmt.Println(\"done\")\u000A');codeLines.push(' done \x3C- true\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' done := make(chan bool, 1)\u000A go worker(done)\u000A');codeLines.push(' \x3C-done\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/channels
generated
27
public/channels
generated
@ -35,7 +35,7 @@ goroutine.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ goroutine.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/bRGMAqinovA">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/bRGMAqinovA"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ goroutine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ goroutine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -85,7 +83,7 @@ Channels are typed by the values they convey.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">messages</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -100,7 +98,7 @@ channel we made above, from a new goroutine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span> <span class="nx">messages</span> <span class="o"><-</span> <span class="s">"ping"</span> <span class="p">}()</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span> <span class="nx">messages</span> <span class="o"><-</span> <span class="s">"ping"</span> <span class="p">}()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -115,7 +113,7 @@ we sent above and print it out.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">msg</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">messages</span>
|
||||
<div class="highlight"><pre> <span class="nx">msg</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">messages</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">msg</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -136,7 +134,7 @@ our channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channels.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run channels.go
|
||||
<span class="go">ping</span>
|
||||
</pre></div>
|
||||
|
||||
@ -153,7 +151,7 @@ message without having to use any other synchronization.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -168,5 +166,10 @@ message without having to use any other synchronization.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channels">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' messages := make(chan string)\u000A');codeLines.push(' go func() { messages \x3C- \"ping\" }()\u000A');codeLines.push(' msg := \x3C-messages\u000A fmt.Println(msg)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
BIN
public/clipboard.png
generated
Normal file
BIN
public/clipboard.png
generated
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 488 B |
27
public/closing-channels
generated
27
public/closing-channels
generated
@ -34,7 +34,7 @@ completion to the channel’s receivers.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ completion to the channel’s receivers.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/mkz69rVMHs6">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/mkz69rVMHs6"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ completion to the channel’s receivers.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -74,7 +72,7 @@ the worker we’ll <code>close</code> the <code>jobs</code> channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">jobs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<span class="nx">done</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">bool</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -95,7 +93,7 @@ all our jobs.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
<span class="nx">j</span><span class="p">,</span> <span class="nx">more</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">jobs</span>
|
||||
<span class="k">if</span> <span class="nx">more</span> <span class="p">{</span>
|
||||
@ -120,7 +118,7 @@ channel, then closes it.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">jobs</span> <span class="o"><-</span> <span class="nx">j</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"sent job"</span><span class="p">,</span> <span class="nx">j</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -140,7 +138,7 @@ we saw earlier.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">done</span>
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">done</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -157,7 +155,7 @@ we saw earlier.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run closing-channels.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run closing-channels.go
|
||||
<span class="go">sent job 1</span>
|
||||
<span class="go">received job 1</span>
|
||||
<span class="go">sent job 2</span>
|
||||
@ -179,7 +177,7 @@ example: <code>range</code> over channels.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -194,5 +192,10 @@ example: <code>range</code> over channels.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/closing-channels">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A jobs := make(chan int, 5)\u000A done := make(chan bool)\u000A');codeLines.push(' go func() {\u000A for {\u000A j, more := \x3C-jobs\u000A if more {\u000A fmt.Println(\"received job\", j)\u000A } else {\u000A fmt.Println(\"received all jobs\")\u000A done \x3C- true\u000A return\u000A }\u000A }\u000A }()\u000A');codeLines.push(' for j := 1; j \x3C= 3; j++ {\u000A jobs \x3C- j\u000A fmt.Println(\"sent job\", j)\u000A }\u000A close(jobs)\u000A fmt.Println(\"sent all jobs\")\u000A');codeLines.push(' \x3C-done\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/closures
generated
29
public/closures
generated
@ -35,7 +35,7 @@ a function inline without having to name it.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ a function inline without having to name it.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/zb93qzV6iN3">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/zb93qzV6iN3"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ a function inline without having to name it.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -75,7 +73,7 @@ form a closure.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">intSeq</span><span class="p">()</span> <span class="kd">func</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">intSeq</span><span class="p">()</span> <span class="kd">func</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span>
|
||||
<span class="k">return</span> <span class="kd">func</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="nx">i</span><span class="o">++</span>
|
||||
@ -93,7 +91,7 @@ form a closure.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -109,7 +107,7 @@ we call <code>nextInt</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">nextInt</span> <span class="o">:=</span> <span class="nx">intSeq</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">nextInt</span> <span class="o">:=</span> <span class="nx">intSeq</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -123,7 +121,7 @@ a few times.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nextInt</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nextInt</span><span class="p">())</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nextInt</span><span class="p">())</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nextInt</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
@ -139,7 +137,7 @@ particular function, create and test a new one.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">newInts</span> <span class="o">:=</span> <span class="nx">intSeq</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">newInts</span> <span class="o">:=</span> <span class="nx">intSeq</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">newInts</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -157,7 +155,7 @@ particular function, create and test a new one.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run closures.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run closures.go
|
||||
<span class="go">1</span>
|
||||
<span class="go">2</span>
|
||||
<span class="go">3</span>
|
||||
@ -175,7 +173,7 @@ recursion.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -190,5 +188,10 @@ recursion.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/closures">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func intSeq() func() int {\u000A i := 0\u000A return func() int {\u000A i++\u000A return i\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' nextInt := intSeq()\u000A');codeLines.push(' fmt.Println(nextInt())\u000A fmt.Println(nextInt())\u000A fmt.Println(nextInt())\u000A');codeLines.push(' newInts := intSeq()\u000A fmt.Println(newInts())\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
51
public/collection-functions
generated
51
public/collection-functions
generated
@ -35,7 +35,7 @@ collection with a custom function.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -50,7 +50,7 @@ your program and data types.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -66,7 +66,7 @@ helper function.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -75,10 +75,8 @@ helper function.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/BJB_npWH516">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/BJB_npWH516"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -90,7 +88,7 @@ helper function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"strings"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"strings"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -105,7 +103,7 @@ helper function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Index</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">t</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Index</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">t</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">vs</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">v</span> <span class="o">==</span> <span class="nx">t</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">i</span>
|
||||
@ -126,7 +124,7 @@ slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Include</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">t</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Include</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">t</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">Index</span><span class="p">(</span><span class="nx">vs</span><span class="p">,</span> <span class="nx">t</span><span class="p">)</span> <span class="o">>=</span> <span class="mi">0</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -142,7 +140,7 @@ satisfies the predicate <code>f</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Any</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Any</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">vs</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">f</span><span class="p">(</span><span class="nx">v</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="kc">true</span>
|
||||
@ -163,7 +161,7 @@ satisfy the predicate <code>f</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">All</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">All</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">vs</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="p">!</span><span class="nx">f</span><span class="p">(</span><span class="nx">v</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="kc">false</span>
|
||||
@ -184,7 +182,7 @@ slice that satisfy the predicate <code>f</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Filter</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="p">[]</span><span class="kt">string</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Filter</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span><span class="p">)</span> <span class="p">[]</span><span class="kt">string</span> <span class="p">{</span>
|
||||
<span class="nx">vsf</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">vs</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">f</span><span class="p">(</span><span class="nx">v</span><span class="p">)</span> <span class="p">{</span>
|
||||
@ -206,7 +204,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Map</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">string</span><span class="p">)</span> <span class="p">[]</span><span class="kt">string</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">Map</span><span class="p">(</span><span class="nx">vs</span> <span class="p">[]</span><span class="kt">string</span><span class="p">,</span> <span class="nx">f</span> <span class="kd">func</span><span class="p">(</span><span class="kt">string</span><span class="p">)</span> <span class="kt">string</span><span class="p">)</span> <span class="p">[]</span><span class="kt">string</span> <span class="p">{</span>
|
||||
<span class="nx">vsm</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">vs</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">vs</span> <span class="p">{</span>
|
||||
<span class="nx">vsm</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="p">=</span> <span class="nx">f</span><span class="p">(</span><span class="nx">v</span><span class="p">)</span>
|
||||
@ -224,7 +222,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -237,7 +235,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">strs</span> <span class="p">=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"peach"</span><span class="p">,</span> <span class="s">"apple"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">,</span> <span class="s">"plum"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">strs</span> <span class="p">=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"peach"</span><span class="p">,</span> <span class="s">"apple"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">,</span> <span class="s">"plum"</span><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -249,7 +247,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Index</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Index</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -261,7 +259,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Include</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="s">"grape"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Include</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="s">"grape"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -273,7 +271,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Any</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Any</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">HasPrefix</span><span class="p">(</span><span class="nx">v</span><span class="p">,</span> <span class="s">"p"</span><span class="p">)</span>
|
||||
<span class="p">}))</span>
|
||||
</pre></div>
|
||||
@ -287,7 +285,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">All</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">All</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">HasPrefix</span><span class="p">(</span><span class="nx">v</span><span class="p">,</span> <span class="s">"p"</span><span class="p">)</span>
|
||||
<span class="p">}))</span>
|
||||
</pre></div>
|
||||
@ -301,7 +299,7 @@ the function <code>f</code> to each string in the original slice.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Filter</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Filter</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="kd">func</span><span class="p">(</span><span class="nx">v</span> <span class="kt">string</span><span class="p">)</span> <span class="kt">bool</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">Contains</span><span class="p">(</span><span class="nx">v</span><span class="p">,</span> <span class="s">"e"</span><span class="p">)</span>
|
||||
<span class="p">}))</span>
|
||||
</pre></div>
|
||||
@ -318,7 +316,7 @@ type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Map</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">ToUpper</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">Map</span><span class="p">(</span><span class="nx">strs</span><span class="p">,</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">ToUpper</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -330,7 +328,7 @@ type.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -346,7 +344,7 @@ type.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run collection-functions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run collection-functions.go
|
||||
<span class="go">2</span>
|
||||
<span class="go">false</span>
|
||||
<span class="go">true</span>
|
||||
@ -369,5 +367,10 @@ type.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/collection-functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"strings\"\u000Aimport \"fmt\"\u000A');codeLines.push('func Index(vs []string, t string) int {\u000A for i, v := range vs {\u000A if v == t {\u000A return i\u000A }\u000A }\u000A return -1\u000A}\u000A');codeLines.push('func Include(vs []string, t string) bool {\u000A return Index(vs, t) \x3E= 0\u000A}\u000A');codeLines.push('func Any(vs []string, f func(string) bool) bool {\u000A for _, v := range vs {\u000A if f(v) {\u000A return true\u000A }\u000A }\u000A return false\u000A}\u000A');codeLines.push('func All(vs []string, f func(string) bool) bool {\u000A for _, v := range vs {\u000A if !f(v) {\u000A return false\u000A }\u000A }\u000A return true\u000A}\u000A');codeLines.push('func Filter(vs []string, f func(string) bool) []string {\u000A vsf := make([]string, 0)\u000A for _, v := range vs {\u000A if f(v) {\u000A vsf = append(vsf, v)\u000A }\u000A }\u000A return vsf\u000A}\u000A');codeLines.push('func Map(vs []string, f func(string) string) []string {\u000A vsm := make([]string, len(vs))\u000A for i, v := range vs {\u000A vsm[i] = f(v)\u000A }\u000A return vsm\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var strs = []string{\"peach\", \"apple\", \"pear\", \"plum\"}\u000A');codeLines.push(' fmt.Println(Index(strs, \"pear\"))\u000A');codeLines.push(' fmt.Println(Include(strs, \"grape\"))\u000A');codeLines.push(' fmt.Println(Any(strs, func(v string) bool {\u000A return strings.HasPrefix(v, \"p\")\u000A }))\u000A');codeLines.push(' fmt.Println(All(strs, func(v string) bool {\u000A return strings.HasPrefix(v, \"p\")\u000A }))\u000A');codeLines.push(' fmt.Println(Filter(strs, func(v string) bool {\u000A return strings.Contains(v, \"e\")\u000A }))\u000A');codeLines.push(' fmt.Println(Map(strs, strings.ToUpper))\u000A');codeLines.push('}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/command-line-arguments
generated
27
public/command-line-arguments
generated
@ -35,7 +35,7 @@ For example, <code>go run hello.go</code> uses <code>run</code> and
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ For example, <code>go run hello.go</code> uses <code>run</code> and
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/6pFdjf800jj">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/6pFdjf800jj"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ For example, <code>go run hello.go</code> uses <code>run</code> and
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -72,7 +70,7 @@ For example, <code>go run hello.go</code> uses <code>run</code> and
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -88,7 +86,7 @@ holds the arguments to the program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">argsWithProg</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span>
|
||||
<div class="highlight"><pre> <span class="nx">argsWithProg</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span>
|
||||
<span class="nx">argsWithoutProg</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span>
|
||||
</pre></div>
|
||||
|
||||
@ -102,7 +100,7 @@ holds the arguments to the program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">arg</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
|
||||
<div class="highlight"><pre> <span class="nx">arg</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -114,7 +112,7 @@ holds the arguments to the program.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">argsWithProg</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">argsWithProg</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">argsWithoutProg</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">arg</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -135,7 +133,7 @@ build a binary with <code>go build</code> first.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-arguments.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-arguments.go
|
||||
<span class="gp">$</span> ./command-line-arguments a b c d
|
||||
<span class="go">[./command-line-arguments a b c d] </span>
|
||||
<span class="go">[a b c d]</span>
|
||||
@ -153,7 +151,7 @@ with flags.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -168,5 +166,10 @@ with flags.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-arguments">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"os\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' argsWithProg := os.Args\u000A argsWithoutProg := os.Args[1:]\u000A');codeLines.push(' arg := os.Args[3]\u000A');codeLines.push(' fmt.Println(argsWithProg)\u000A fmt.Println(argsWithoutProg)\u000A fmt.Println(arg)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
41
public/command-line-flags
generated
41
public/command-line-flags
generated
@ -35,7 +35,7 @@ command-line flag.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ command-line flag.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/klFR5DitrCy">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/klFR5DitrCy"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -62,7 +60,7 @@ implement our example command-line program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"flag"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"flag"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -75,7 +73,7 @@ implement our example command-line program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -93,7 +91,7 @@ we’ll see how to use this pointer below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">wordPtr</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">String</span><span class="p">(</span><span class="s">"word"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"a string"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">wordPtr</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">String</span><span class="p">(</span><span class="s">"word"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"a string"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -107,7 +105,7 @@ similar approach to the <code>word</code> flag.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">numbPtr</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">Int</span><span class="p">(</span><span class="s">"numb"</span><span class="p">,</span> <span class="mi">42</span><span class="p">,</span> <span class="s">"an int"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">numbPtr</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">Int</span><span class="p">(</span><span class="s">"numb"</span><span class="p">,</span> <span class="mi">42</span><span class="p">,</span> <span class="s">"an int"</span><span class="p">)</span>
|
||||
<span class="nx">boolPtr</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">Bool</span><span class="p">(</span><span class="s">"fork"</span><span class="p">,</span> <span class="kc">false</span><span class="p">,</span> <span class="s">"a bool"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -124,7 +122,7 @@ declaration function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">svar</span> <span class="kt">string</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">svar</span> <span class="kt">string</span>
|
||||
<span class="nx">flag</span><span class="p">.</span><span class="nx">StringVar</span><span class="p">(</span><span class="o">&</span><span class="nx">svar</span><span class="p">,</span> <span class="s">"svar"</span><span class="p">,</span> <span class="s">"bar"</span><span class="p">,</span> <span class="s">"a string var"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -139,7 +137,7 @@ to execute the command-line parsing.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">flag</span><span class="p">.</span><span class="nx">Parse</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">flag</span><span class="p">.</span><span class="nx">Parse</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -155,7 +153,7 @@ to get the actual option values.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"word:"</span><span class="p">,</span> <span class="o">*</span><span class="nx">wordPtr</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"word:"</span><span class="p">,</span> <span class="o">*</span><span class="nx">wordPtr</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"numb:"</span><span class="p">,</span> <span class="o">*</span><span class="nx">numbPtr</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"fork:"</span><span class="p">,</span> <span class="o">*</span><span class="nx">boolPtr</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"svar:"</span><span class="p">,</span> <span class="nx">svar</span><span class="p">)</span>
|
||||
@ -179,7 +177,7 @@ binary directly.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-flags.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-flags.go
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -193,7 +191,7 @@ all flags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt -numb<span class="o">=</span><span class="m">7</span> -fork -svar<span class="o">=</span>flag
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt -numb<span class="o">=</span><span class="m">7</span> -fork -svar<span class="o">=</span>flag
|
||||
<span class="go">word: opt</span>
|
||||
<span class="go">numb: 7</span>
|
||||
<span class="go">fork: true</span>
|
||||
@ -212,7 +210,7 @@ their default values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt
|
||||
<span class="go">word: opt</span>
|
||||
<span class="go">numb: 42</span>
|
||||
<span class="go">fork: false</span>
|
||||
@ -231,7 +229,7 @@ any flags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3
|
||||
<span class="go">word: opt</span>
|
||||
<span class="go">...</span>
|
||||
<span class="go">tail: [a1 a2 a3]</span>
|
||||
@ -249,7 +247,7 @@ will be interpreted as positional arguments).</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3 -numb<span class="o">=</span>7
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -word<span class="o">=</span>opt a1 a2 a3 -numb<span class="o">=</span>7
|
||||
<span class="go">word: opt</span>
|
||||
<span class="go">numb: 42</span>
|
||||
<span class="go">fork: false</span>
|
||||
@ -268,7 +266,7 @@ generated help text for the command-line program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -h
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -h
|
||||
<span class="go">Usage of ./command-line-flags:</span>
|
||||
<span class="go"> -fork=false: a bool</span>
|
||||
<span class="go"> -numb=42: an int</span>
|
||||
@ -288,7 +286,7 @@ and show the help text again.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -wat
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-flags -wat
|
||||
<span class="go">flag provided but not defined: -wat</span>
|
||||
<span class="go">Usage of ./command-line-flags:</span>
|
||||
<span class="go">...</span>
|
||||
@ -308,5 +306,10 @@ and show the help text again.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-flags">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"flag\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' wordPtr := flag.String(\"word\", \"foo\", \"a string\")\u000A');codeLines.push(' numbPtr := flag.Int(\"numb\", 42, \"an int\")\u000A boolPtr := flag.Bool(\"fork\", false, \"a bool\")\u000A');codeLines.push(' var svar string\u000A flag.StringVar(&svar, \"svar\", \"bar\", \"a string var\")\u000A');codeLines.push(' flag.Parse()\u000A');codeLines.push(' fmt.Println(\"word:\", *wordPtr)\u000A fmt.Println(\"numb:\", *numbPtr)\u000A fmt.Println(\"fork:\", *boolPtr)\u000A fmt.Println(\"svar:\", svar)\u000A fmt.Println(\"tail:\", flag.Args())\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
37
public/command-line-subcommands
generated
37
public/command-line-subcommands
generated
@ -37,7 +37,7 @@ subcommands that have their own flags.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -46,10 +46,8 @@ subcommands that have their own flags.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/gtgSAg76N4I">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/gtgSAg76N4I"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -61,7 +59,7 @@ subcommands that have their own flags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"flag"</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"os"</span>
|
||||
@ -77,7 +75,7 @@ subcommands that have their own flags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -92,7 +90,7 @@ for this subcommand.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fooCmd</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">NewFlagSet</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">ExitOnError</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fooCmd</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">NewFlagSet</span><span class="p">(</span><span class="s">"foo"</span><span class="p">,</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">ExitOnError</span><span class="p">)</span>
|
||||
<span class="nx">fooEnable</span> <span class="o">:=</span> <span class="nx">fooCmd</span><span class="p">.</span><span class="nx">Bool</span><span class="p">(</span><span class="s">"enable"</span><span class="p">,</span> <span class="kc">false</span><span class="p">,</span> <span class="s">"enable"</span><span class="p">)</span>
|
||||
<span class="nx">fooName</span> <span class="o">:=</span> <span class="nx">fooCmd</span><span class="p">.</span><span class="nx">String</span><span class="p">(</span><span class="s">"name"</span><span class="p">,</span> <span class="s">""</span><span class="p">,</span> <span class="s">"name"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -108,7 +106,7 @@ supported flags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">barCmd</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">NewFlagSet</span><span class="p">(</span><span class="s">"bar"</span><span class="p">,</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">ExitOnError</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">barCmd</span> <span class="o">:=</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">NewFlagSet</span><span class="p">(</span><span class="s">"bar"</span><span class="p">,</span> <span class="nx">flag</span><span class="p">.</span><span class="nx">ExitOnError</span><span class="p">)</span>
|
||||
<span class="nx">barLevel</span> <span class="o">:=</span> <span class="nx">barCmd</span><span class="p">.</span><span class="nx">Int</span><span class="p">(</span><span class="s">"level"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="s">"level"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -123,7 +121,7 @@ to the program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">)</span> <span class="p"><</span> <span class="mi">2</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">)</span> <span class="p"><</span> <span class="mi">2</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"expected 'foo' or 'bar' subcommands"</span><span class="p">)</span>
|
||||
<span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -139,7 +137,7 @@ to the program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">switch</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">switch</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -153,7 +151,7 @@ have access to trailing positional arguments.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">case</span> <span class="s">"foo"</span><span class="p">:</span>
|
||||
<div class="highlight"><pre> <span class="k">case</span> <span class="s">"foo"</span><span class="p">:</span>
|
||||
<span class="nx">fooCmd</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Args</span><span class="p">[</span><span class="mi">2</span><span class="p">:])</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"subcommand 'foo'"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">" enable:"</span><span class="p">,</span> <span class="o">*</span><span class="nx">fooEnable</span><span class="p">)</span>
|
||||
@ -184,7 +182,7 @@ have access to trailing positional arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-subcommands.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build command-line-subcommands.go
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -197,7 +195,7 @@ have access to trailing positional arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands foo -enable -name<span class="o">=</span>joe a1 a2
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands foo -enable -name<span class="o">=</span>joe a1 a2
|
||||
<span class="go">subcommand 'foo'</span>
|
||||
<span class="go"> enable: true</span>
|
||||
<span class="go"> name: joe</span>
|
||||
@ -214,7 +212,7 @@ have access to trailing positional arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands bar -level <span class="m">8</span> a1
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands bar -level <span class="m">8</span> a1
|
||||
<span class="go">subcommand 'bar'</span>
|
||||
<span class="go"> level: 8</span>
|
||||
<span class="go"> tail: [a1]</span>
|
||||
@ -230,7 +228,7 @@ have access to trailing positional arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands bar -enable a1
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./command-line-subcommands bar -enable a1
|
||||
<span class="go">flag provided but not defined: -enable</span>
|
||||
<span class="go">Usage of bar:</span>
|
||||
<span class="go"> -level int</span>
|
||||
@ -248,7 +246,7 @@ way to parameterize programs.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -263,5 +261,10 @@ way to parameterize programs.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-subcommands">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"flag\"\u000A \"fmt\"\u000A \"os\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' fooCmd := flag.NewFlagSet(\"foo\", flag.ExitOnError)\u000A fooEnable := fooCmd.Bool(\"enable\", false, \"enable\")\u000A fooName := fooCmd.String(\"name\", \"\", \"name\")\u000A');codeLines.push(' barCmd := flag.NewFlagSet(\"bar\", flag.ExitOnError)\u000A barLevel := barCmd.Int(\"level\", 0, \"level\")\u000A');codeLines.push(' if len(os.Args) \x3C 2 {\u000A fmt.Println(\"expected \'foo\' or \'bar\' subcommands\")\u000A os.Exit(1)\u000A }\u000A');codeLines.push(' switch os.Args[1] {\u000A');codeLines.push(' case \"foo\":\u000A fooCmd.Parse(os.Args[2:])\u000A fmt.Println(\"subcommand \'foo\'\")\u000A fmt.Println(\" enable:\", *fooEnable)\u000A fmt.Println(\" name:\", *fooName)\u000A fmt.Println(\" tail:\", fooCmd.Args())\u000A case \"bar\":\u000A barCmd.Parse(os.Args[2:])\u000A fmt.Println(\"subcommand \'bar\'\")\u000A fmt.Println(\" level:\", *barLevel)\u000A fmt.Println(\" tail:\", barCmd.Args())\u000A default:\u000A fmt.Println(\"expected \'foo\' or \'bar\' subcommands\")\u000A os.Exit(1)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/constants
generated
29
public/constants
generated
@ -33,7 +33,7 @@ and numeric values.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ and numeric values.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/VhP0f8moZd3">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/VhP0f8moZd3"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ and numeric values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"math"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -71,7 +69,7 @@ and numeric values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">const</span> <span class="nx">s</span> <span class="kt">string</span> <span class="p">=</span> <span class="s">"constant"</span>
|
||||
<div class="highlight"><pre><span class="kd">const</span> <span class="nx">s</span> <span class="kt">string</span> <span class="p">=</span> <span class="s">"constant"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -83,7 +81,7 @@ and numeric values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -98,7 +96,7 @@ statement can.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">const</span> <span class="nx">n</span> <span class="p">=</span> <span class="mi">500000000</span>
|
||||
<div class="highlight"><pre> <span class="kd">const</span> <span class="nx">n</span> <span class="p">=</span> <span class="mi">500000000</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -112,7 +110,7 @@ arbitrary precision.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">const</span> <span class="nx">d</span> <span class="p">=</span> <span class="mf">3e20</span> <span class="o">/</span> <span class="nx">n</span>
|
||||
<div class="highlight"><pre> <span class="kd">const</span> <span class="nx">d</span> <span class="p">=</span> <span class="mf">3e20</span> <span class="o">/</span> <span class="nx">n</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -127,7 +125,7 @@ one, such as by an explicit conversion.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">int64</span><span class="p">(</span><span class="nx">d</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">int64</span><span class="p">(</span><span class="nx">d</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -143,7 +141,7 @@ assignment or function call. For example, here
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">math</span><span class="p">.</span><span class="nx">Sin</span><span class="p">(</span><span class="nx">n</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">math</span><span class="p">.</span><span class="nx">Sin</span><span class="p">(</span><span class="nx">n</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -160,7 +158,7 @@ assignment or function call. For example, here
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run constant.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run constant.go
|
||||
<span class="go">constant</span>
|
||||
<span class="go">6e+11</span>
|
||||
<span class="go">600000000000</span>
|
||||
@ -181,5 +179,10 @@ assignment or function call. For example, here
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/constants">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"math\"\u000A');codeLines.push('const s string = \"constant\"\u000A');codeLines.push('func main() {\u000A fmt.Println(s)\u000A');codeLines.push(' const n = 500000000\u000A');codeLines.push(' const d = 3e20 / n\u000A fmt.Println(d)\u000A');codeLines.push(' fmt.Println(int64(d))\u000A');codeLines.push(' fmt.Println(math.Sin(n))\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/defer
generated
31
public/defer
generated
@ -35,7 +35,7 @@ purposes of cleanup. <code>defer</code> is often used where e.g.
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ purposes of cleanup. <code>defer</code> is often used where e.g.
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/OrCaBiCrTKq">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/OrCaBiCrTKq"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ purposes of cleanup. <code>defer</code> is often used where e.g.
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -75,7 +73,7 @@ do that with <code>defer</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -92,7 +90,7 @@ of the enclosing function (<code>main</code>), after
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span> <span class="o">:=</span> <span class="nx">createFile</span><span class="p">(</span><span class="s">"/tmp/defer.txt"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span> <span class="o">:=</span> <span class="nx">createFile</span><span class="p">(</span><span class="s">"/tmp/defer.txt"</span><span class="p">)</span>
|
||||
<span class="k">defer</span> <span class="nx">closeFile</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<span class="nx">writeFile</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -107,7 +105,7 @@ of the enclosing function (<code>main</code>), after
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">createFile</span><span class="p">(</span><span class="nx">p</span> <span class="kt">string</span><span class="p">)</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">createFile</span><span class="p">(</span><span class="nx">p</span> <span class="kt">string</span><span class="p">)</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"creating"</span><span class="p">)</span>
|
||||
<span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="nx">p</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
@ -126,7 +124,7 @@ of the enclosing function (<code>main</code>), after
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">writeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">writeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"writing"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintln</span><span class="p">(</span><span class="nx">f</span><span class="p">,</span> <span class="s">"data"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -140,7 +138,7 @@ of the enclosing function (<code>main</code>), after
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -154,7 +152,7 @@ file, even in a deferred function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">closeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">closeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"closing"</span><span class="p">)</span>
|
||||
<span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
@ -168,7 +166,7 @@ file, even in a deferred function.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stderr</span><span class="p">,</span> <span class="s">"error: %v\n"</span><span class="p">,</span> <span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -190,7 +188,7 @@ after being written.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run defer.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run defer.go
|
||||
<span class="go">creating</span>
|
||||
<span class="go">writing</span>
|
||||
<span class="go">closing</span>
|
||||
@ -210,5 +208,10 @@ after being written.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/defer">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"os\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' f := createFile(\"/tmp/defer.txt\")\u000A defer closeFile(f)\u000A writeFile(f)\u000A}\u000A');codeLines.push('func createFile(p string) *os.File {\u000A fmt.Println(\"creating\")\u000A f, err := os.Create(p)\u000A if err != nil {\u000A panic(err)\u000A }\u000A return f\u000A}\u000A');codeLines.push('func writeFile(f *os.File) {\u000A fmt.Println(\"writing\")\u000A fmt.Fprintln(f, \"data\")\u000A');codeLines.push('}\u000A');codeLines.push('func closeFile(f *os.File) {\u000A fmt.Println(\"closing\")\u000A err := f.Close()\u000A');codeLines.push(' if err != nil {\u000A fmt.Fprintf(os.Stderr, \"error: %v\\n\", err)\u000A os.Exit(1)\u000A }\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
49
public/directories
generated
49
public/directories
generated
@ -33,7 +33,7 @@
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/-7kWq0PmATF">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/-7kWq0PmATF"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"io/ioutil"</span>
|
||||
<span class="s">"os"</span>
|
||||
@ -74,7 +72,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">e</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -90,7 +88,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -104,7 +102,7 @@ directory.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Mkdir</span><span class="p">(</span><span class="s">"subdir"</span><span class="p">,</span> <span class="mo">0755</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Mkdir</span><span class="p">(</span><span class="s">"subdir"</span><span class="p">,</span> <span class="mo">0755</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -121,7 +119,7 @@ will delete a whole directory tree (similarly to
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">RemoveAll</span><span class="p">(</span><span class="s">"subdir"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">RemoveAll</span><span class="p">(</span><span class="s">"subdir"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -134,7 +132,7 @@ will delete a whole directory tree (similarly to
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span> <span class="o">:=</span> <span class="kd">func</span><span class="p">(</span><span class="nx">name</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span> <span class="o">:=</span> <span class="kd">func</span><span class="p">(</span><span class="nx">name</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">d</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">""</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">ioutil</span><span class="p">.</span><span class="nx">WriteFile</span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">d</span><span class="p">,</span> <span class="mo">0644</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
@ -149,7 +147,7 @@ will delete a whole directory tree (similarly to
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/file1"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/file1"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -164,7 +162,7 @@ command-line <code>mkdir -p</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">MkdirAll</span><span class="p">(</span><span class="s">"subdir/parent/child"</span><span class="p">,</span> <span class="mo">0755</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">MkdirAll</span><span class="p">(</span><span class="s">"subdir/parent/child"</span><span class="p">,</span> <span class="mo">0755</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -177,7 +175,7 @@ command-line <code>mkdir -p</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/parent/file2"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/parent/file2"</span><span class="p">)</span>
|
||||
<span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/parent/file3"</span><span class="p">)</span>
|
||||
<span class="nx">createEmptyFile</span><span class="p">(</span><span class="s">"subdir/parent/child/file4"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -193,7 +191,7 @@ slice of <code>os.FileInfo</code> objects.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadDir</span><span class="p">(</span><span class="s">"subdir/parent"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">c</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadDir</span><span class="p">(</span><span class="s">"subdir/parent"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -206,7 +204,7 @@ slice of <code>os.FileInfo</code> objects.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Listing subdir/parent"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Listing subdir/parent"</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">entry</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">c</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">" "</span><span class="p">,</span> <span class="nx">entry</span><span class="p">.</span><span class="nx">Name</span><span class="p">(),</span> <span class="nx">entry</span><span class="p">.</span><span class="nx">IsDir</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
@ -223,7 +221,7 @@ similarly to <code>cd</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Chdir</span><span class="p">(</span><span class="s">"subdir/parent/child"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Chdir</span><span class="p">(</span><span class="s">"subdir/parent/child"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -238,7 +236,7 @@ when listing the <em>current</em> directory.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadDir</span><span class="p">(</span><span class="s">"."</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">c</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadDir</span><span class="p">(</span><span class="s">"."</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -251,7 +249,7 @@ when listing the <em>current</em> directory.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Listing subdir/parent/child"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Listing subdir/parent/child"</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">entry</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">c</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">" "</span><span class="p">,</span> <span class="nx">entry</span><span class="p">.</span><span class="nx">Name</span><span class="p">(),</span> <span class="nx">entry</span><span class="p">.</span><span class="nx">IsDir</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
@ -267,7 +265,7 @@ when listing the <em>current</em> directory.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Chdir</span><span class="p">(</span><span class="s">"../../.."</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">err</span> <span class="p">=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Chdir</span><span class="p">(</span><span class="s">"../../.."</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -284,7 +282,7 @@ directory visited.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Visiting subdir"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Visiting subdir"</span><span class="p">)</span>
|
||||
<span class="nx">err</span> <span class="p">=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Walk</span><span class="p">(</span><span class="s">"subdir"</span><span class="p">,</span> <span class="nx">visit</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -300,7 +298,7 @@ recursively by <code>filepath.Walk</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">visit</span><span class="p">(</span><span class="nx">p</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">info</span> <span class="nx">os</span><span class="p">.</span><span class="nx">FileInfo</span><span class="p">,</span> <span class="nx">err</span> <span class="kt">error</span><span class="p">)</span> <span class="kt">error</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">visit</span><span class="p">(</span><span class="nx">p</span> <span class="kt">string</span><span class="p">,</span> <span class="nx">info</span> <span class="nx">os</span><span class="p">.</span><span class="nx">FileInfo</span><span class="p">,</span> <span class="nx">err</span> <span class="kt">error</span><span class="p">)</span> <span class="kt">error</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">err</span>
|
||||
<span class="p">}</span>
|
||||
@ -322,7 +320,7 @@ recursively by <code>filepath.Walk</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run directories.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run directories.go
|
||||
<span class="go">Listing subdir/parent</span>
|
||||
<span class="go"> child true</span>
|
||||
<span class="go"> file2 false</span>
|
||||
@ -353,5 +351,10 @@ recursively by <code>filepath.Walk</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/directories">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"io/ioutil\"\u000A \"os\"\u000A \"path/filepath\"\u000A)\u000A');codeLines.push('func check(e error) {\u000A if e != nil {\u000A panic(e)\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' err := os.Mkdir(\"subdir\", 0755)\u000A check(err)\u000A');codeLines.push(' defer os.RemoveAll(\"subdir\")\u000A');codeLines.push(' createEmptyFile := func(name string) {\u000A d := []byte(\"\")\u000A check(ioutil.WriteFile(name, d, 0644))\u000A }\u000A');codeLines.push(' createEmptyFile(\"subdir/file1\")\u000A');codeLines.push(' err = os.MkdirAll(\"subdir/parent/child\", 0755)\u000A check(err)\u000A');codeLines.push(' createEmptyFile(\"subdir/parent/file2\")\u000A createEmptyFile(\"subdir/parent/file3\")\u000A createEmptyFile(\"subdir/parent/child/file4\")\u000A');codeLines.push(' c, err := ioutil.ReadDir(\"subdir/parent\")\u000A check(err)\u000A');codeLines.push(' fmt.Println(\"Listing subdir/parent\")\u000A for _, entry := range c {\u000A fmt.Println(\" \", entry.Name(), entry.IsDir())\u000A }\u000A');codeLines.push(' err = os.Chdir(\"subdir/parent/child\")\u000A check(err)\u000A');codeLines.push(' c, err = ioutil.ReadDir(\".\")\u000A check(err)\u000A');codeLines.push(' fmt.Println(\"Listing subdir/parent/child\")\u000A for _, entry := range c {\u000A fmt.Println(\" \", entry.Name(), entry.IsDir())\u000A }\u000A');codeLines.push(' err = os.Chdir(\"../../..\")\u000A check(err)\u000A');codeLines.push(' fmt.Println(\"Visiting subdir\")\u000A err = filepath.Walk(\"subdir\", visit)\u000A}\u000A');codeLines.push('func visit(p string, info os.FileInfo, err error) error {\u000A if err != nil {\u000A return err\u000A }\u000A fmt.Println(\" \", p, info.IsDir())\u000A return nil\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/environment-variables
generated
27
public/environment-variables
generated
@ -35,7 +35,7 @@ Let’s look at how to set, get, and list environment variables.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ Let’s look at how to set, get, and list environment variables.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/CZJ4R_uu6Uu">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/CZJ4R_uu6Uu"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ Let’s look at how to set, get, and list environment variables.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
<span class="kn">import</span> <span class="s">"strings"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
@ -73,7 +71,7 @@ Let’s look at how to set, get, and list environment variables.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -89,7 +87,7 @@ environment.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">os</span><span class="p">.</span><span class="nx">Setenv</span><span class="p">(</span><span class="s">"FOO"</span><span class="p">,</span> <span class="s">"1"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">os</span><span class="p">.</span><span class="nx">Setenv</span><span class="p">(</span><span class="s">"FOO"</span><span class="p">,</span> <span class="s">"1"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"FOO:"</span><span class="p">,</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Getenv</span><span class="p">(</span><span class="s">"FOO"</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"BAR:"</span><span class="p">,</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Getenv</span><span class="p">(</span><span class="s">"BAR"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
@ -107,7 +105,7 @@ get the key and value. Here we print all the keys.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Environ</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">pair</span> <span class="o">:=</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">Split</span><span class="p">(</span><span class="nx">e</span><span class="p">,</span> <span class="s">"="</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
|
||||
@ -131,7 +129,7 @@ for <code>FOO</code> that we set in the program, but that
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run environment-variables.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run environment-variables.go
|
||||
<span class="go">FOO: 1</span>
|
||||
<span class="go">BAR: </span>
|
||||
</pre></div>
|
||||
@ -147,7 +145,7 @@ particular machine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="go">TERM_PROGRAM</span>
|
||||
<div class="highlight"><pre><span class="go">TERM_PROGRAM</span>
|
||||
<span class="go">PATH</span>
|
||||
<span class="go">SHELL</span>
|
||||
<span class="go">...</span>
|
||||
@ -164,7 +162,7 @@ program picks that value up.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nv">BAR</span><span class="o">=</span><span class="m">2</span> go run environment-variables.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nv">BAR</span><span class="o">=</span><span class="m">2</span> go run environment-variables.go
|
||||
<span class="go">FOO: 1</span>
|
||||
<span class="go">BAR: 2</span>
|
||||
<span class="go">...</span>
|
||||
@ -184,5 +182,10 @@ program picks that value up.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/environment-variables">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"os\"\u000Aimport \"strings\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' os.Setenv(\"FOO\", \"1\")\u000A fmt.Println(\"FOO:\", os.Getenv(\"FOO\"))\u000A fmt.Println(\"BAR:\", os.Getenv(\"BAR\"))\u000A');codeLines.push(' fmt.Println()\u000A for _, e := range os.Environ() {\u000A pair := strings.Split(e, \"=\")\u000A fmt.Println(pair[0])\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/epoch
generated
27
public/epoch
generated
@ -35,7 +35,7 @@ Here’s how to do it in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ Here’s how to do it in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/eN1Qv2ATB-C">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/eN1Qv2ATB-C"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ Here’s how to do it in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -72,7 +70,7 @@ Here’s how to do it in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -87,7 +85,7 @@ nanoseconds, respectively.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">now</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">now</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<span class="nx">secs</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">Unix</span><span class="p">()</span>
|
||||
<span class="nx">nanos</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">UnixNano</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">now</span><span class="p">)</span>
|
||||
@ -105,7 +103,7 @@ divide from nanoseconds.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">millis</span> <span class="o">:=</span> <span class="nx">nanos</span> <span class="o">/</span> <span class="mi">1000000</span>
|
||||
<div class="highlight"><pre> <span class="nx">millis</span> <span class="o">:=</span> <span class="nx">nanos</span> <span class="o">/</span> <span class="mi">1000000</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">secs</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">millis</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nanos</span><span class="p">)</span>
|
||||
@ -122,7 +120,7 @@ since the epoch into the corresponding <code>time</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Unix</span><span class="p">(</span><span class="nx">secs</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Unix</span><span class="p">(</span><span class="nx">secs</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Unix</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nx">nanos</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -140,7 +138,7 @@ since the epoch into the corresponding <code>time</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run epoch.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run epoch.go
|
||||
<span class="go">2012-10-31 16:13:58.292387 +0000 UTC</span>
|
||||
<span class="go">1351700038</span>
|
||||
<span class="go">1351700038292</span>
|
||||
@ -160,7 +158,7 @@ parsing and formatting.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -175,5 +173,10 @@ parsing and formatting.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/epoch">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' now := time.Now()\u000A secs := now.Unix()\u000A nanos := now.UnixNano()\u000A fmt.Println(now)\u000A');codeLines.push(' millis := nanos / 1000000\u000A fmt.Println(secs)\u000A fmt.Println(millis)\u000A fmt.Println(nanos)\u000A');codeLines.push(' fmt.Println(time.Unix(secs, 0))\u000A fmt.Println(time.Unix(0, nanos))\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
41
public/errors
generated
41
public/errors
generated
@ -39,7 +39,7 @@ non-error tasks.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -48,10 +48,8 @@ non-error tasks.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/mP_ZR1qjUvA">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/mP_ZR1qjUvA"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -63,7 +61,7 @@ non-error tasks.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"errors"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"errors"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -78,7 +76,7 @@ have type <code>error</code>, a built-in interface.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f1</span><span class="p">(</span><span class="nx">arg</span> <span class="kt">int</span><span class="p">)</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f1</span><span class="p">(</span><span class="nx">arg</span> <span class="kt">int</span><span class="p">)</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">arg</span> <span class="o">==</span> <span class="mi">42</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
@ -93,7 +91,7 @@ with the given error message.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="nx">errors</span><span class="p">.</span><span class="nx">New</span><span class="p">(</span><span class="s">"can't work with 42"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="nx">errors</span><span class="p">.</span><span class="nx">New</span><span class="p">(</span><span class="s">"can't work with 42"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -105,7 +103,7 @@ with the given error message.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -119,7 +117,7 @@ there was no error.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="nx">arg</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="kc">nil</span>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="nx">arg</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="kc">nil</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -136,7 +134,7 @@ to explicitly represent an argument error.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">argError</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">argError</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">arg</span> <span class="kt">int</span>
|
||||
<span class="nx">prob</span> <span class="kt">string</span>
|
||||
<span class="p">}</span>
|
||||
@ -151,7 +149,7 @@ to explicitly represent an argument error.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">e</span> <span class="o">*</span><span class="nx">argError</span><span class="p">)</span> <span class="nx">Error</span><span class="p">()</span> <span class="kt">string</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">e</span> <span class="o">*</span><span class="nx">argError</span><span class="p">)</span> <span class="nx">Error</span><span class="p">()</span> <span class="kt">string</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Sprintf</span><span class="p">(</span><span class="s">"%d - %s"</span><span class="p">,</span> <span class="nx">e</span><span class="p">.</span><span class="nx">arg</span><span class="p">,</span> <span class="nx">e</span><span class="p">.</span><span class="nx">prob</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -165,7 +163,7 @@ to explicitly represent an argument error.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f2</span><span class="p">(</span><span class="nx">arg</span> <span class="kt">int</span><span class="p">)</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f2</span><span class="p">(</span><span class="nx">arg</span> <span class="kt">int</span><span class="p">)</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">arg</span> <span class="o">==</span> <span class="mi">42</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
@ -181,7 +179,7 @@ fields <code>arg</code> and <code>prob</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">&</span><span class="nx">argError</span><span class="p">{</span><span class="nx">arg</span><span class="p">,</span> <span class="s">"can't work with it"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">&</span><span class="nx">argError</span><span class="p">{</span><span class="nx">arg</span><span class="p">,</span> <span class="s">"can't work with it"</span><span class="p">}</span>
|
||||
<span class="p">}</span>
|
||||
<span class="k">return</span> <span class="nx">arg</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="kc">nil</span>
|
||||
<span class="p">}</span>
|
||||
@ -196,7 +194,7 @@ fields <code>arg</code> and <code>prob</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -212,7 +210,7 @@ idiom in Go code.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">i</span> <span class="o">:=</span> <span class="k">range</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">7</span><span class="p">,</span> <span class="mi">42</span><span class="p">}</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">i</span> <span class="o">:=</span> <span class="k">range</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">7</span><span class="p">,</span> <span class="mi">42</span><span class="p">}</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">r</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">f1</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span> <span class="nx">e</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"f1 failed:"</span><span class="p">,</span> <span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
|
||||
@ -241,7 +239,7 @@ assertion.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">f2</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">f2</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">ae</span><span class="p">,</span> <span class="nx">ok</span> <span class="o">:=</span> <span class="nx">e</span><span class="p">.(</span><span class="o">*</span><span class="nx">argError</span><span class="p">);</span> <span class="nx">ok</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">ae</span><span class="p">.</span><span class="nx">arg</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">ae</span><span class="p">.</span><span class="nx">prob</span><span class="p">)</span>
|
||||
@ -262,7 +260,7 @@ assertion.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run errors.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run errors.go
|
||||
<span class="go">f1 worked: 10</span>
|
||||
<span class="go">f1 failed: can't work with 42</span>
|
||||
<span class="go">f2 worked: 10</span>
|
||||
@ -282,7 +280,7 @@ on the Go blog for more on error handling.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -297,5 +295,10 @@ on the Go blog for more on error handling.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/errors">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"errors\"\u000Aimport \"fmt\"\u000A');codeLines.push('func f1(arg int) (int, error) {\u000A if arg == 42 {\u000A');codeLines.push(' return -1, errors.New(\"can\'t work with 42\")\u000A');codeLines.push(' }\u000A');codeLines.push(' return arg + 3, nil\u000A}\u000A');codeLines.push('type argError struct {\u000A arg int\u000A prob string\u000A}\u000A');codeLines.push('func (e *argError) Error() string {\u000A return fmt.Sprintf(\"%d - %s\", e.arg, e.prob)\u000A}\u000A');codeLines.push('func f2(arg int) (int, error) {\u000A if arg == 42 {\u000A');codeLines.push(' return -1, &argError{arg, \"can\'t work with it\"}\u000A }\u000A return arg + 3, nil\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' for _, i := range []int{7, 42} {\u000A if r, e := f1(i); e != nil {\u000A fmt.Println(\"f1 failed:\", e)\u000A } else {\u000A fmt.Println(\"f1 worked:\", r)\u000A }\u000A }\u000A for _, i := range []int{7, 42} {\u000A if r, e := f2(i); e != nil {\u000A fmt.Println(\"f2 failed:\", e)\u000A } else {\u000A fmt.Println(\"f2 worked:\", r)\u000A }\u000A }\u000A');codeLines.push(' _, e := f2(42)\u000A if ae, ok := e.(*argError); ok {\u000A fmt.Println(ae.arg)\u000A fmt.Println(ae.prob)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/execing-processes
generated
29
public/execing-processes
generated
@ -40,7 +40,7 @@ function.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -49,10 +49,8 @@ function.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/bf11ADw-2Ho">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/bf11ADw-2Ho"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -64,7 +62,7 @@ function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"syscall"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"syscall"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
<span class="kn">import</span> <span class="s">"os/exec"</span>
|
||||
</pre></div>
|
||||
@ -78,7 +76,7 @@ function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -94,7 +92,7 @@ we’ll use <code>exec.LookPath</code> to find it (probably
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">binary</span><span class="p">,</span> <span class="nx">lookErr</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">LookPath</span><span class="p">(</span><span class="s">"ls"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">binary</span><span class="p">,</span> <span class="nx">lookErr</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">LookPath</span><span class="p">(</span><span class="s">"ls"</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">lookErr</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">lookErr</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -113,7 +111,7 @@ be the program name.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">args</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"ls"</span><span class="p">,</span> <span class="s">"-a"</span><span class="p">,</span> <span class="s">"-l"</span><span class="p">,</span> <span class="s">"-h"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">args</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"ls"</span><span class="p">,</span> <span class="s">"-a"</span><span class="p">,</span> <span class="s">"-l"</span><span class="p">,</span> <span class="s">"-h"</span><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -128,7 +126,7 @@ environment.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">env</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Environ</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">env</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Environ</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -145,7 +143,7 @@ value.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">execErr</span> <span class="o">:=</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">Exec</span><span class="p">(</span><span class="nx">binary</span><span class="p">,</span> <span class="nx">args</span><span class="p">,</span> <span class="nx">env</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">execErr</span> <span class="o">:=</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">Exec</span><span class="p">(</span><span class="nx">binary</span><span class="p">,</span> <span class="nx">args</span><span class="p">,</span> <span class="nx">env</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">execErr</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">execErr</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -166,7 +164,7 @@ value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run execing-processes.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run execing-processes.go
|
||||
<span class="go">total 16</span>
|
||||
<span class="go">drwxr-xr-x 4 mark 136B Oct 3 16:29 .</span>
|
||||
<span class="go">drwxr-xr-x 91 mark 3.0K Oct 3 12:50 ..</span>
|
||||
@ -186,7 +184,7 @@ processes covers most use cases for <code>fork</code>.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -201,5 +199,10 @@ processes covers most use cases for <code>fork</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/execing-processes">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"syscall\"\u000Aimport \"os\"\u000Aimport \"os/exec\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' binary, lookErr := exec.LookPath(\"ls\")\u000A if lookErr != nil {\u000A panic(lookErr)\u000A }\u000A');codeLines.push(' args := []string{\"ls\", \"-a\", \"-l\", \"-h\"}\u000A');codeLines.push(' env := os.Environ()\u000A');codeLines.push(' execErr := syscall.Exec(binary, args, env)\u000A if execErr != nil {\u000A panic(execErr)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/exit
generated
29
public/exit
generated
@ -29,7 +29,7 @@ status.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -38,10 +38,8 @@ status.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/vDaM0-MGJ_k">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/vDaM0-MGJ_k"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -53,7 +51,7 @@ status.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -66,7 +64,7 @@ status.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -80,7 +78,7 @@ this <code>fmt.Println</code> will never be called.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"!"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"!"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -93,7 +91,7 @@ this <code>fmt.Println</code> will never be called.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -110,7 +108,7 @@ use <code>os.Exit</code>.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -126,7 +124,7 @@ will be picked up by <code>go</code> and printed.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run exit.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run exit.go
|
||||
<span class="go">exit status 3</span>
|
||||
</pre></div>
|
||||
|
||||
@ -141,7 +139,7 @@ the status in the terminal.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build exit.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build exit.go
|
||||
<span class="gp">$</span> ./exit
|
||||
<span class="gp">$</span> <span class="nb">echo</span> <span class="nv">$?</span>
|
||||
<span class="go">3</span>
|
||||
@ -157,7 +155,7 @@ the status in the terminal.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -168,5 +166,10 @@ the status in the terminal.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/exit">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"os\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' defer fmt.Println(\"!\")\u000A');codeLines.push(' os.Exit(3)\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
35
public/file-paths
generated
35
public/file-paths
generated
@ -34,10 +34,8 @@ between operating systems; <code>dir/file</code> on Linux vs.
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/QIitbMNiFRx">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/QIitbMNiFRx"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -49,7 +47,7 @@ between operating systems; <code>dir/file</code> on Linux vs.
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"path/filepath"</span>
|
||||
<span class="s">"strings"</span>
|
||||
@ -65,7 +63,7 @@ between operating systems; <code>dir/file</code> on Linux vs.
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -80,7 +78,7 @@ and constructs a hierarchical path from them.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="s">"dir1"</span><span class="p">,</span> <span class="s">"dir2"</span><span class="p">,</span> <span class="s">"filename"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="s">"dir1"</span><span class="p">,</span> <span class="s">"dir2"</span><span class="p">,</span> <span class="s">"filename"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"p:"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -98,7 +96,7 @@ and directory changes.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="s">"dir1//"</span><span class="p">,</span> <span class="s">"filename"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="s">"dir1//"</span><span class="p">,</span> <span class="s">"filename"</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="s">"dir1/../dir1"</span><span class="p">,</span> <span class="s">"filename"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -114,7 +112,7 @@ return both in the same call.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Dir(p):"</span><span class="p">,</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Dir</span><span class="p">(</span><span class="nx">p</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Dir(p):"</span><span class="p">,</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Dir</span><span class="p">(</span><span class="nx">p</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Base(p):"</span><span class="p">,</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Base</span><span class="p">(</span><span class="nx">p</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -128,7 +126,7 @@ return both in the same call.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">IsAbs</span><span class="p">(</span><span class="s">"dir/file"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">IsAbs</span><span class="p">(</span><span class="s">"dir/file"</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">filepath</span><span class="p">.</span><span class="nx">IsAbs</span><span class="p">(</span><span class="s">"/dir/file"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -141,7 +139,7 @@ return both in the same call.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">filename</span> <span class="o">:=</span> <span class="s">"config.json"</span>
|
||||
<div class="highlight"><pre> <span class="nx">filename</span> <span class="o">:=</span> <span class="s">"config.json"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -155,7 +153,7 @@ can split the extension out of such names with <code>Ext</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">ext</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Ext</span><span class="p">(</span><span class="nx">filename</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">ext</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Ext</span><span class="p">(</span><span class="nx">filename</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">ext</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -170,7 +168,7 @@ use <code>strings.TrimSuffix</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">strings</span><span class="p">.</span><span class="nx">TrimSuffix</span><span class="p">(</span><span class="nx">filename</span><span class="p">,</span> <span class="nx">ext</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">strings</span><span class="p">.</span><span class="nx">TrimSuffix</span><span class="p">(</span><span class="nx">filename</span><span class="p">,</span> <span class="nx">ext</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -185,7 +183,7 @@ be made relative to base.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">rel</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Rel</span><span class="p">(</span><span class="s">"a/b"</span><span class="p">,</span> <span class="s">"a/b/t/file"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">rel</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Rel</span><span class="p">(</span><span class="s">"a/b"</span><span class="p">,</span> <span class="s">"a/b/t/file"</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -201,7 +199,7 @@ be made relative to base.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">rel</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Rel</span><span class="p">(</span><span class="s">"a/b"</span><span class="p">,</span> <span class="s">"a/c/t/file"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">rel</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Rel</span><span class="p">(</span><span class="s">"a/b"</span><span class="p">,</span> <span class="s">"a/c/t/file"</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -222,7 +220,7 @@ be made relative to base.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run file-paths.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run file-paths.go
|
||||
<span class="go">p: dir1/dir2/filename</span>
|
||||
<span class="go">dir1/filename</span>
|
||||
<span class="go">dir1/filename</span>
|
||||
@ -250,5 +248,10 @@ be made relative to base.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/file-paths">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"path/filepath\"\u000A \"strings\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' p := filepath.Join(\"dir1\", \"dir2\", \"filename\")\u000A fmt.Println(\"p:\", p)\u000A');codeLines.push(' fmt.Println(filepath.Join(\"dir1//\", \"filename\"))\u000A fmt.Println(filepath.Join(\"dir1/../dir1\", \"filename\"))\u000A');codeLines.push(' fmt.Println(\"Dir(p):\", filepath.Dir(p))\u000A fmt.Println(\"Base(p):\", filepath.Base(p))\u000A');codeLines.push(' fmt.Println(filepath.IsAbs(\"dir/file\"))\u000A fmt.Println(filepath.IsAbs(\"/dir/file\"))\u000A');codeLines.push(' filename := \"config.json\"\u000A');codeLines.push(' ext := filepath.Ext(filename)\u000A fmt.Println(ext)\u000A');codeLines.push(' fmt.Println(strings.TrimSuffix(filename, ext))\u000A');codeLines.push(' rel, err := filepath.Rel(\"a/b\", \"a/b/t/file\")\u000A if err != nil {\u000A panic(err)\u000A }\u000A fmt.Println(rel)\u000A');codeLines.push(' rel, err = filepath.Rel(\"a/b\", \"a/c/t/file\")\u000A if err != nil {\u000A panic(err)\u000A }\u000A fmt.Println(rel)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/for
generated
29
public/for
generated
@ -33,7 +33,7 @@ three basic types of <code>for</code> loops.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ three basic types of <code>for</code> loops.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/lGYfUJwiGfi">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/lGYfUJwiGfi"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ three basic types of <code>for</code> loops.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -69,7 +67,7 @@ three basic types of <code>for</code> loops.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -82,7 +80,7 @@ three basic types of <code>for</code> loops.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span>
|
||||
<div class="highlight"><pre> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o"><=</span> <span class="mi">3</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nx">i</span> <span class="p">=</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
@ -99,7 +97,7 @@ three basic types of <code>for</code> loops.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">7</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">7</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">j</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -116,7 +114,7 @@ the enclosing function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"loop"</span><span class="p">)</span>
|
||||
<span class="k">break</span>
|
||||
<span class="p">}</span>
|
||||
@ -133,7 +131,7 @@ the loop.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">n</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">n</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">n</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">n</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">n</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">n</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">n</span><span class="o">%</span><span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="p">}</span>
|
||||
@ -155,7 +153,7 @@ the loop.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run <span class="k">for</span>.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run <span class="k">for</span>.go
|
||||
<span class="go">1</span>
|
||||
<span class="go">2</span>
|
||||
<span class="go">3</span>
|
||||
@ -180,7 +178,7 @@ structures.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -195,5 +193,10 @@ structures.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/for">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' i := 1\u000A for i \x3C= 3 {\u000A fmt.Println(i)\u000A i = i + 1\u000A }\u000A');codeLines.push(' for j := 7; j \x3C= 9; j++ {\u000A fmt.Println(j)\u000A }\u000A');codeLines.push(' for {\u000A fmt.Println(\"loop\")\u000A break\u000A }\u000A');codeLines.push(' for n := 0; n \x3C= 5; n++ {\u000A if n%2 == 0 {\u000A continue\u000A }\u000A fmt.Println(n)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/functions
generated
31
public/functions
generated
@ -33,7 +33,7 @@ functions with a few different examples.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ functions with a few different examples.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/hzGUvK6iJNm">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/hzGUvK6iJNm"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ functions with a few different examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ their sum as an <code>int</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">plus</span><span class="p">(</span><span class="nx">a</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">b</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">plus</span><span class="p">(</span><span class="nx">a</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">b</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ expression.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="nx">a</span> <span class="o">+</span> <span class="nx">b</span>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="nx">a</span> <span class="o">+</span> <span class="nx">b</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -103,7 +101,7 @@ declares the type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">plusPlus</span><span class="p">(</span><span class="nx">a</span><span class="p">,</span> <span class="nx">b</span><span class="p">,</span> <span class="nx">c</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">plusPlus</span><span class="p">(</span><span class="nx">a</span><span class="p">,</span> <span class="nx">b</span><span class="p">,</span> <span class="nx">c</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">a</span> <span class="o">+</span> <span class="nx">b</span> <span class="o">+</span> <span class="nx">c</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -117,7 +115,7 @@ declares the type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -131,7 +129,7 @@ declares the type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">res</span> <span class="o">:=</span> <span class="nx">plus</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">res</span> <span class="o">:=</span> <span class="nx">plus</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"1+2 ="</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -144,7 +142,7 @@ declares the type.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">res</span> <span class="p">=</span> <span class="nx">plusPlus</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">res</span> <span class="p">=</span> <span class="nx">plusPlus</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"1+2+3 ="</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -162,7 +160,7 @@ declares the type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run functions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run functions.go
|
||||
<span class="go">1+2 = 3</span>
|
||||
<span class="go">1+2+3 = 6</span>
|
||||
</pre></div>
|
||||
@ -178,7 +176,7 @@ multiple return values, which we’ll look at next.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -193,5 +191,10 @@ multiple return values, which we’ll look at next.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func plus(a int, b int) int {\u000A');codeLines.push(' return a + b\u000A}\u000A');codeLines.push('func plusPlus(a, b, c int) int {\u000A return a + b + c\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' res := plus(1, 2)\u000A fmt.Println(\"1+2 =\", res)\u000A');codeLines.push(' res = plusPlus(1, 2, 3)\u000A fmt.Println(\"1+2+3 =\", res)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/goroutines
generated
31
public/goroutines
generated
@ -32,7 +32,7 @@
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -41,10 +41,8 @@
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/6Y8t3Yxd1LD">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/6Y8t3Yxd1LD"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -56,7 +54,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -68,7 +66,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f</span><span class="p">(</span><span class="nx">from</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">f</span><span class="p">(</span><span class="nx">from</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">from</span><span class="p">,</span> <span class="s">":"</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -84,7 +82,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -99,7 +97,7 @@ synchronously.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">(</span><span class="s">"direct"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">(</span><span class="s">"direct"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -114,7 +112,7 @@ concurrently with the calling one.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="nx">f</span><span class="p">(</span><span class="s">"goroutine"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="nx">f</span><span class="p">(</span><span class="s">"goroutine"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -128,7 +126,7 @@ function call.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">(</span><span class="nx">msg</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">(</span><span class="nx">msg</span> <span class="kt">string</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">msg</span><span class="p">)</span>
|
||||
<span class="p">}(</span><span class="s">"going"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -146,7 +144,7 @@ before the program exits.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Scanln</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Scanln</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"done"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -168,7 +166,7 @@ goroutines being run concurrently by the Go runtime.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run goroutines.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run goroutines.go
|
||||
<span class="go">direct : 0</span>
|
||||
<span class="go">direct : 1</span>
|
||||
<span class="go">direct : 2</span>
|
||||
@ -191,7 +189,7 @@ concurrent Go programs: channels.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -206,5 +204,10 @@ concurrent Go programs: channels.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/goroutines">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func f(from string) {\u000A for i := 0; i \x3C 3; i++ {\u000A fmt.Println(from, \":\", i)\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' f(\"direct\")\u000A');codeLines.push(' go f(\"goroutine\")\u000A');codeLines.push(' go func(msg string) {\u000A fmt.Println(msg)\u000A }(\"going\")\u000A');codeLines.push(' fmt.Scanln()\u000A fmt.Println(\"done\")\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
23
public/hello-world
generated
23
public/hello-world
generated
@ -28,10 +28,8 @@ message. Here’s the full source code.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/mp1ENMU6ZYu">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/mp1ENMU6ZYu"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -43,7 +41,7 @@ message. Here’s the full source code.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -55,7 +53,7 @@ message. Here’s the full source code.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"hello world"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -75,7 +73,7 @@ use <code>go run</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run hello-world.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run hello-world.go
|
||||
<span class="go">hello world</span>
|
||||
</pre></div>
|
||||
|
||||
@ -90,7 +88,7 @@ binaries. We can do this using <code>go build</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build hello-world.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go build hello-world.go
|
||||
<span class="gp">$</span> ls
|
||||
<span class="go">hello-world hello-world.go</span>
|
||||
</pre></div>
|
||||
@ -105,7 +103,7 @@ binaries. We can do this using <code>go build</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./hello-world
|
||||
<div class="highlight"><pre><span class="gp">$</span> ./hello-world
|
||||
<span class="go">hello world</span>
|
||||
</pre></div>
|
||||
|
||||
@ -120,7 +118,7 @@ learn more about the language.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -135,5 +133,10 @@ learn more about the language.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/hello-world">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A fmt.Println(\"hello world\")\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/http-clients
generated
25
public/http-clients
generated
@ -34,10 +34,8 @@ HTTP requests.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/VxYIifr_UuH">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/VxYIifr_UuH"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -49,7 +47,7 @@ HTTP requests.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"bufio"</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"net/http"</span>
|
||||
@ -65,7 +63,7 @@ HTTP requests.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -82,7 +80,7 @@ settings.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">resp</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">http</span><span class="p">.</span><span class="nx">Get</span><span class="p">(</span><span class="s">"http://gobyexample.com"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">resp</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">http</span><span class="p">.</span><span class="nx">Get</span><span class="p">(</span><span class="s">"http://gobyexample.com"</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -99,7 +97,7 @@ settings.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Response status:"</span><span class="p">,</span> <span class="nx">resp</span><span class="p">.</span><span class="nx">Status</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Response status:"</span><span class="p">,</span> <span class="nx">resp</span><span class="p">.</span><span class="nx">Status</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -112,7 +110,7 @@ settings.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">scanner</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewScanner</span><span class="p">(</span><span class="nx">resp</span><span class="p">.</span><span class="nx">Body</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">scanner</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewScanner</span><span class="p">(</span><span class="nx">resp</span><span class="p">.</span><span class="nx">Body</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Scan</span><span class="p">()</span> <span class="o">&&</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">scanner</span><span class="p">.</span><span class="nx">Text</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
@ -127,7 +125,7 @@ settings.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Err</span><span class="p">();</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Err</span><span class="p">();</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="p">}</span>
|
||||
@ -146,7 +144,7 @@ settings.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run http-clients.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run http-clients.go
|
||||
<span class="go">Response status: 200 OK</span>
|
||||
<span class="go"><!DOCTYPE html></span>
|
||||
<span class="go"><html></span>
|
||||
@ -169,5 +167,10 @@ settings.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/http-clients">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('package main\u000A');codeLines.push('import (\u000A \"bufio\"\u000A \"fmt\"\u000A \"net/http\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' resp, err := http.Get(\"http://gobyexample.com\")\u000A if err != nil {\u000A panic(err)\u000A }\u000A defer resp.Body.Close()\u000A');codeLines.push(' fmt.Println(\"Response status:\", resp.Status)\u000A');codeLines.push(' scanner := bufio.NewScanner(resp.Body)\u000A for i := 0; scanner.Scan() && i \x3C 5; i++ {\u000A fmt.Println(scanner.Text())\u000A }\u000A');codeLines.push(' if err := scanner.Err(); err != nil {\u000A panic(err)\u000A }\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/http-servers
generated
31
public/http-servers
generated
@ -32,10 +32,8 @@
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/lNuS9ysZmxH">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/lNuS9ysZmxH"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -47,7 +45,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"net/http"</span>
|
||||
<span class="p">)</span>
|
||||
@ -67,7 +65,7 @@ on functions with the appropriate signature.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">hello</span><span class="p">(</span><span class="nx">w</span> <span class="nx">http</span><span class="p">.</span><span class="nx">ResponseWriter</span><span class="p">,</span> <span class="nx">req</span> <span class="o">*</span><span class="nx">http</span><span class="p">.</span><span class="nx">Request</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">hello</span><span class="p">(</span><span class="nx">w</span> <span class="nx">http</span><span class="p">.</span><span class="nx">ResponseWriter</span><span class="p">,</span> <span class="nx">req</span> <span class="o">*</span><span class="nx">http</span><span class="p">.</span><span class="nx">Request</span><span class="p">)</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -84,7 +82,7 @@ HTTP response. Here our simple response is just
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">w</span><span class="p">,</span> <span class="s">"hello\n"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">w</span><span class="p">,</span> <span class="s">"hello\n"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -97,7 +95,7 @@ HTTP response. Here our simple response is just
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">headers</span><span class="p">(</span><span class="nx">w</span> <span class="nx">http</span><span class="p">.</span><span class="nx">ResponseWriter</span><span class="p">,</span> <span class="nx">req</span> <span class="o">*</span><span class="nx">http</span><span class="p">.</span><span class="nx">Request</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">headers</span><span class="p">(</span><span class="nx">w</span> <span class="nx">http</span><span class="p">.</span><span class="nx">ResponseWriter</span><span class="p">,</span> <span class="nx">req</span> <span class="o">*</span><span class="nx">http</span><span class="p">.</span><span class="nx">Request</span><span class="p">)</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -112,7 +110,7 @@ headers and echoing them into the response body.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">headers</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">req</span><span class="p">.</span><span class="nx">Header</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">headers</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">req</span><span class="p">.</span><span class="nx">Header</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">h</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">headers</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">w</span><span class="p">,</span> <span class="s">"%v: %v\n"</span><span class="p">,</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">h</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -129,7 +127,7 @@ headers and echoing them into the response body.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -145,7 +143,7 @@ takes a function as an argument.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">http</span><span class="p">.</span><span class="nx">HandleFunc</span><span class="p">(</span><span class="s">"/hello"</span><span class="p">,</span> <span class="nx">hello</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">http</span><span class="p">.</span><span class="nx">HandleFunc</span><span class="p">(</span><span class="s">"/hello"</span><span class="p">,</span> <span class="nx">hello</span><span class="p">)</span>
|
||||
<span class="nx">http</span><span class="p">.</span><span class="nx">HandleFunc</span><span class="p">(</span><span class="s">"/headers"</span><span class="p">,</span> <span class="nx">headers</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -161,7 +159,7 @@ router we’ve just set up.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">http</span><span class="p">.</span><span class="nx">ListenAndServe</span><span class="p">(</span><span class="s">":8090"</span><span class="p">,</span> <span class="kc">nil</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">http</span><span class="p">.</span><span class="nx">ListenAndServe</span><span class="p">(</span><span class="s">":8090"</span><span class="p">,</span> <span class="kc">nil</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -179,7 +177,7 @@ router we’ve just set up.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run http-servers.go <span class="p">&</span>
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run http-servers.go <span class="p">&</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -192,7 +190,7 @@ router we’ve just set up.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> curl localhost:8090/hello
|
||||
<div class="highlight"><pre><span class="gp">$</span> curl localhost:8090/hello
|
||||
<span class="go">hello</span>
|
||||
</pre></div>
|
||||
|
||||
@ -210,5 +208,10 @@ router we’ve just set up.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/http-servers">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"net/http\"\u000A)\u000A');codeLines.push('func hello(w http.ResponseWriter, req *http.Request) {\u000A');codeLines.push(' fmt.Fprintf(w, \"hello\\n\")\u000A}\u000A');codeLines.push('func headers(w http.ResponseWriter, req *http.Request) {\u000A');codeLines.push(' for name, headers := range req.Header {\u000A for _, h := range headers {\u000A fmt.Fprintf(w, \"%v: %v\\n\", name, h)\u000A }\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' http.HandleFunc(\"/hello\", hello)\u000A http.HandleFunc(\"/headers\", headers)\u000A');codeLines.push(' http.ListenAndServe(\":8090\", nil)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/if-else
generated
29
public/if-else
generated
@ -33,7 +33,7 @@ straight-forward.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ straight-forward.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/p6-WKTqEks4">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/p6-WKTqEks4"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ straight-forward.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -69,7 +67,7 @@ straight-forward.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -82,7 +80,7 @@ straight-forward.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">7</span><span class="o">%</span><span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">7</span><span class="o">%</span><span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"7 is even"</span><span class="p">)</span>
|
||||
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"7 is odd"</span><span class="p">)</span>
|
||||
@ -99,7 +97,7 @@ straight-forward.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">8</span><span class="o">%</span><span class="mi">4</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">8</span><span class="o">%</span><span class="mi">4</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"8 is divisible by 4"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -116,7 +114,7 @@ branches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">num</span> <span class="o">:=</span> <span class="mi">9</span><span class="p">;</span> <span class="nx">num</span> <span class="p"><</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">num</span> <span class="o">:=</span> <span class="mi">9</span><span class="p">;</span> <span class="nx">num</span> <span class="p"><</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span> <span class="s">"is negative"</span><span class="p">)</span>
|
||||
<span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="nx">num</span> <span class="p"><</span> <span class="mi">10</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span> <span class="s">"has 1 digit"</span><span class="p">)</span>
|
||||
@ -137,7 +135,7 @@ in Go, but that the braces are required.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -151,7 +149,7 @@ in Go, but that the braces are required.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run <span class="k">if</span>-else.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run <span class="k">if</span>-else.go
|
||||
<span class="go">7 is odd</span>
|
||||
<span class="go">8 is divisible by 4</span>
|
||||
<span class="go">9 has 1 digit</span>
|
||||
@ -169,7 +167,7 @@ for basic conditions.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -184,5 +182,10 @@ for basic conditions.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/if-else">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' if 7%2 == 0 {\u000A fmt.Println(\"7 is even\")\u000A } else {\u000A fmt.Println(\"7 is odd\")\u000A }\u000A');codeLines.push(' if 8%4 == 0 {\u000A fmt.Println(\"8 is divisible by 4\")\u000A }\u000A');codeLines.push(' if num := 9; num \x3C 0 {\u000A fmt.Println(num, \"is negative\")\u000A } else if num \x3C 10 {\u000A fmt.Println(num, \"has 1 digit\")\u000A } else {\u000A fmt.Println(num, \"has multiple digits\")\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
33
public/interfaces
generated
33
public/interfaces
generated
@ -33,7 +33,7 @@ signatures.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ signatures.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/0EwsqIn3TTi">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/0EwsqIn3TTi"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ signatures.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"math"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -71,7 +69,7 @@ signatures.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">geometry</span> <span class="kd">interface</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">geometry</span> <span class="kd">interface</span> <span class="p">{</span>
|
||||
<span class="nx">area</span><span class="p">()</span> <span class="kt">float64</span>
|
||||
<span class="nx">perim</span><span class="p">()</span> <span class="kt">float64</span>
|
||||
<span class="p">}</span>
|
||||
@ -88,7 +86,7 @@ signatures.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">rect</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">rect</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">width</span><span class="p">,</span> <span class="nx">height</span> <span class="kt">float64</span>
|
||||
<span class="p">}</span>
|
||||
<span class="kd">type</span> <span class="nx">circle</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
@ -108,7 +106,7 @@ implement <code>geometry</code> on <code>rect</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="nx">rect</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="nx">rect</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">r</span><span class="p">.</span><span class="nx">width</span> <span class="o">*</span> <span class="nx">r</span><span class="p">.</span><span class="nx">height</span>
|
||||
<span class="p">}</span>
|
||||
<span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="nx">rect</span><span class="p">)</span> <span class="nx">perim</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
@ -126,7 +124,7 @@ implement <code>geometry</code> on <code>rect</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">c</span> <span class="nx">circle</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">c</span> <span class="nx">circle</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">math</span><span class="p">.</span><span class="nx">Pi</span> <span class="o">*</span> <span class="nx">c</span><span class="p">.</span><span class="nx">radius</span> <span class="o">*</span> <span class="nx">c</span><span class="p">.</span><span class="nx">radius</span>
|
||||
<span class="p">}</span>
|
||||
<span class="kd">func</span> <span class="p">(</span><span class="nx">c</span> <span class="nx">circle</span><span class="p">)</span> <span class="nx">perim</span><span class="p">()</span> <span class="kt">float64</span> <span class="p">{</span>
|
||||
@ -147,7 +145,7 @@ to work on any <code>geometry</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">measure</span><span class="p">(</span><span class="nx">g</span> <span class="nx">geometry</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">measure</span><span class="p">(</span><span class="nx">g</span> <span class="nx">geometry</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">g</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">g</span><span class="p">.</span><span class="nx">area</span><span class="p">())</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">g</span><span class="p">.</span><span class="nx">perim</span><span class="p">())</span>
|
||||
@ -163,7 +161,7 @@ to work on any <code>geometry</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">r</span> <span class="o">:=</span> <span class="nx">rect</span><span class="p">{</span><span class="nx">width</span><span class="p">:</span> <span class="mi">3</span><span class="p">,</span> <span class="nx">height</span><span class="p">:</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<span class="nx">c</span> <span class="o">:=</span> <span class="nx">circle</span><span class="p">{</span><span class="nx">radius</span><span class="p">:</span> <span class="mi">5</span><span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -181,7 +179,7 @@ these structs as arguments to <code>measure</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">measure</span><span class="p">(</span><span class="nx">r</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">measure</span><span class="p">(</span><span class="nx">r</span><span class="p">)</span>
|
||||
<span class="nx">measure</span><span class="p">(</span><span class="nx">c</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -199,7 +197,7 @@ these structs as arguments to <code>measure</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run interfaces.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run interfaces.go
|
||||
<span class="go">{3 4}</span>
|
||||
<span class="go">12</span>
|
||||
<span class="go">14</span>
|
||||
@ -219,7 +217,7 @@ these structs as arguments to <code>measure</code>.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -234,5 +232,10 @@ these structs as arguments to <code>measure</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/interfaces">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"math\"\u000A');codeLines.push('type geometry interface {\u000A area() float64\u000A perim() float64\u000A}\u000A');codeLines.push('type rect struct {\u000A width, height float64\u000A}\u000Atype circle struct {\u000A radius float64\u000A}\u000A');codeLines.push('func (r rect) area() float64 {\u000A return r.width * r.height\u000A}\u000Afunc (r rect) perim() float64 {\u000A return 2*r.width + 2*r.height\u000A}\u000A');codeLines.push('func (c circle) area() float64 {\u000A return math.Pi * c.radius * c.radius\u000A}\u000Afunc (c circle) perim() float64 {\u000A return 2 * math.Pi * c.radius\u000A}\u000A');codeLines.push('func measure(g geometry) {\u000A fmt.Println(g)\u000A fmt.Println(g.area())\u000A fmt.Println(g.perim())\u000A}\u000A');codeLines.push('func main() {\u000A r := rect{width: 3, height: 4}\u000A c := circle{radius: 5}\u000A');codeLines.push(' measure(r)\u000A measure(c)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
53
public/json
generated
53
public/json
generated
@ -34,7 +34,7 @@ data types.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ data types.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/xC6SHbzGBZC">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/xC6SHbzGBZC"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ data types.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"encoding/json"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"encoding/json"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
</pre></div>
|
||||
@ -74,7 +72,7 @@ decoding of custom types below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">response1</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">response1</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">Page</span> <span class="kt">int</span>
|
||||
<span class="nx">Fruits</span> <span class="p">[]</span><span class="kt">string</span>
|
||||
<span class="p">}</span>
|
||||
@ -93,7 +91,7 @@ decoding of custom types below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -108,7 +106,7 @@ values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">bolB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="kc">true</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">bolB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="kc">true</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">bolB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -121,7 +119,7 @@ values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">intB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">intB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">intB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -134,7 +132,7 @@ values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fltB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mf">2.34</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fltB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mf">2.34</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">fltB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -147,7 +145,7 @@ values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">strB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="s">"gopher"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">strB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="s">"gopher"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">strB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -162,7 +160,7 @@ to JSON arrays and objects as you’d expect.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">slcD</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"apple"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">slcD</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"apple"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">}</span>
|
||||
<span class="nx">slcB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">slcD</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">slcB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
@ -176,7 +174,7 @@ to JSON arrays and objects as you’d expect.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">mapD</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">"apple"</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="s">"lettuce"</span><span class="p">:</span> <span class="mi">7</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">mapD</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">"apple"</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="s">"lettuce"</span><span class="p">:</span> <span class="mi">7</span><span class="p">}</span>
|
||||
<span class="nx">mapB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">mapD</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">mapB</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
@ -194,7 +192,7 @@ use those names as the JSON keys.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">res1D</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">response1</span><span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">res1D</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">response1</span><span class="p">{</span>
|
||||
<span class="nx">Page</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
|
||||
<span class="nx">Fruits</span><span class="p">:</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"apple"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">}}</span>
|
||||
<span class="nx">res1B</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">res1D</span><span class="p">)</span>
|
||||
@ -214,7 +212,7 @@ of such tags.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">res2D</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">response2</span><span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">res2D</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">response2</span><span class="p">{</span>
|
||||
<span class="nx">Page</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
|
||||
<span class="nx">Fruits</span><span class="p">:</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"apple"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">,</span> <span class="s">"pear"</span><span class="p">}}</span>
|
||||
<span class="nx">res2B</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">res2D</span><span class="p">)</span>
|
||||
@ -233,7 +231,7 @@ structure.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">byt</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">`{"num":6.13,"strs":["a","b"]}`</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">byt</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">`{"num":6.13,"strs":["a","b"]}`</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -249,7 +247,7 @@ to arbitrary data types.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">dat</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kd">interface</span><span class="p">{}</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">dat</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kd">interface</span><span class="p">{}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -263,7 +261,7 @@ associated errors.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Unmarshal</span><span class="p">(</span><span class="nx">byt</span><span class="p">,</span> <span class="o">&</span><span class="nx">dat</span><span class="p">);</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Unmarshal</span><span class="p">(</span><span class="nx">byt</span><span class="p">,</span> <span class="o">&</span><span class="nx">dat</span><span class="p">);</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">dat</span><span class="p">)</span>
|
||||
@ -282,7 +280,7 @@ the expected <code>float64</code> type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">num</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">"num"</span><span class="p">].(</span><span class="kt">float64</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">num</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">"num"</span><span class="p">].(</span><span class="kt">float64</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -297,7 +295,7 @@ conversions.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">strs</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">"strs"</span><span class="p">].([]</span><span class="kd">interface</span><span class="p">{})</span>
|
||||
<div class="highlight"><pre> <span class="nx">strs</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">"strs"</span><span class="p">].([]</span><span class="kd">interface</span><span class="p">{})</span>
|
||||
<span class="nx">str1</span> <span class="o">:=</span> <span class="nx">strs</span><span class="p">[</span><span class="mi">0</span><span class="p">].(</span><span class="kt">string</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">str1</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -316,7 +314,7 @@ data.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">str</span> <span class="o">:=</span> <span class="s">`{"page": 1, "fruits": ["apple", "peach"]}`</span>
|
||||
<div class="highlight"><pre> <span class="nx">str</span> <span class="o">:=</span> <span class="s">`{"page": 1, "fruits": ["apple", "peach"]}`</span>
|
||||
<span class="nx">res</span> <span class="o">:=</span> <span class="nx">response2</span><span class="p">{}</span>
|
||||
<span class="nx">json</span><span class="p">.</span><span class="nx">Unmarshal</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">str</span><span class="p">),</span> <span class="o">&</span><span class="nx">res</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">)</span>
|
||||
@ -337,7 +335,7 @@ stream JSON encodings directly to <code>os.Writer</code>s like
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">enc</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">NewEncoder</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stdout</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">enc</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">NewEncoder</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stdout</span><span class="p">)</span>
|
||||
<span class="nx">d</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">"apple"</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="s">"lettuce"</span><span class="p">:</span> <span class="mi">7</span><span class="p">}</span>
|
||||
<span class="nx">enc</span><span class="p">.</span><span class="nx">Encode</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -356,7 +354,7 @@ stream JSON encodings directly to <code>os.Writer</code>s like
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run json.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run json.go
|
||||
<span class="go">true</span>
|
||||
<span class="go">1</span>
|
||||
<span class="go">2.34</span>
|
||||
@ -386,7 +384,7 @@ for more.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -401,5 +399,10 @@ for more.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/json">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"encoding/json\"\u000Aimport \"fmt\"\u000Aimport \"os\"\u000A');codeLines.push('type response1 struct {\u000A Page int\u000A Fruits []string\u000A}\u000Atype response2 struct {\u000A Page int `json:\"page\"`\u000A Fruits []string `json:\"fruits\"`\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' bolB, _ := json.Marshal(true)\u000A fmt.Println(string(bolB))\u000A');codeLines.push(' intB, _ := json.Marshal(1)\u000A fmt.Println(string(intB))\u000A');codeLines.push(' fltB, _ := json.Marshal(2.34)\u000A fmt.Println(string(fltB))\u000A');codeLines.push(' strB, _ := json.Marshal(\"gopher\")\u000A fmt.Println(string(strB))\u000A');codeLines.push(' slcD := []string{\"apple\", \"peach\", \"pear\"}\u000A slcB, _ := json.Marshal(slcD)\u000A fmt.Println(string(slcB))\u000A');codeLines.push(' mapD := map[string]int{\"apple\": 5, \"lettuce\": 7}\u000A mapB, _ := json.Marshal(mapD)\u000A fmt.Println(string(mapB))\u000A');codeLines.push(' res1D := &response1{\u000A Page: 1,\u000A Fruits: []string{\"apple\", \"peach\", \"pear\"}}\u000A res1B, _ := json.Marshal(res1D)\u000A fmt.Println(string(res1B))\u000A');codeLines.push(' res2D := &response2{\u000A Page: 1,\u000A Fruits: []string{\"apple\", \"peach\", \"pear\"}}\u000A res2B, _ := json.Marshal(res2D)\u000A fmt.Println(string(res2B))\u000A');codeLines.push(' byt := []byte(`{\"num\":6.13,\"strs\":[\"a\",\"b\"]}`)\u000A');codeLines.push(' var dat map[string]interface{}\u000A');codeLines.push(' if err := json.Unmarshal(byt, &dat); err != nil {\u000A panic(err)\u000A }\u000A fmt.Println(dat)\u000A');codeLines.push(' num := dat[\"num\"].(float64)\u000A fmt.Println(num)\u000A');codeLines.push(' strs := dat[\"strs\"].([]interface{})\u000A str1 := strs[0].(string)\u000A fmt.Println(str1)\u000A');codeLines.push(' str := `{\"page\": 1, \"fruits\": [\"apple\", \"peach\"]}`\u000A res := response2{}\u000A json.Unmarshal([]byte(str), &res)\u000A fmt.Println(res)\u000A fmt.Println(res.Fruits[0])\u000A');codeLines.push(' enc := json.NewEncoder(os.Stdout)\u000A d := map[string]int{\"apple\": 5, \"lettuce\": 7}\u000A enc.Encode(d)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/line-filters
generated
31
public/line-filters
generated
@ -35,7 +35,7 @@ line filters.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -47,10 +47,8 @@ pattern to write your own Go line filters.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/hnaOIaQAjKF">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/hnaOIaQAjKF"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -62,7 +60,7 @@ pattern to write your own Go line filters.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"bufio"</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"os"</span>
|
||||
@ -79,7 +77,7 @@ pattern to write your own Go line filters.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -95,7 +93,7 @@ the next line in the default scanner.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">scanner</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewScanner</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stdin</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">scanner</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewScanner</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stdin</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -109,7 +107,7 @@ from the input.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Scan</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Scan</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -121,7 +119,7 @@ from the input.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">ucl</span> <span class="o">:=</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">ToUpper</span><span class="p">(</span><span class="nx">scanner</span><span class="p">.</span><span class="nx">Text</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">ucl</span> <span class="o">:=</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">ToUpper</span><span class="p">(</span><span class="nx">scanner</span><span class="p">.</span><span class="nx">Text</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -134,7 +132,7 @@ from the input.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">ucl</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">ucl</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -149,7 +147,7 @@ expected and not reported by <code>Scan</code> as an error.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Err</span><span class="p">();</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">scanner</span><span class="p">.</span><span class="nx">Err</span><span class="p">();</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintln</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stderr</span><span class="p">,</span> <span class="s">"error:"</span><span class="p">,</span> <span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -171,7 +169,7 @@ lowercase lines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">echo</span> <span class="s1">'hello'</span> > /tmp/lines
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">echo</span> <span class="s1">'hello'</span> > /tmp/lines
|
||||
<span class="gp">$</span> <span class="nb">echo</span> <span class="s1">'filter'</span> >> /tmp/lines
|
||||
</pre></div>
|
||||
|
||||
@ -185,7 +183,7 @@ lowercase lines.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> cat /tmp/lines <span class="p">|</span> go run line-filters.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> cat /tmp/lines <span class="p">|</span> go run line-filters.go
|
||||
<span class="go">HELLO</span>
|
||||
<span class="go">FILTER</span>
|
||||
</pre></div>
|
||||
@ -204,5 +202,10 @@ lowercase lines.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/line-filters">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"bufio\"\u000A \"fmt\"\u000A \"os\"\u000A \"strings\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' scanner := bufio.NewScanner(os.Stdin)\u000A');codeLines.push(' for scanner.Scan() {\u000A');codeLines.push(' ucl := strings.ToUpper(scanner.Text())\u000A');codeLines.push(' fmt.Println(ucl)\u000A }\u000A');codeLines.push(' if err := scanner.Err(); err != nil {\u000A fmt.Fprintln(os.Stderr, \"error:\", err)\u000A os.Exit(1)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
35
public/maps
generated
35
public/maps
generated
@ -33,7 +33,7 @@
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/U67R66Oab8r">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/U67R66Oab8r"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -69,7 +67,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -83,7 +81,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">m</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">m</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -97,7 +95,7 @@ syntax.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">m</span><span class="p">[</span><span class="s">"k1"</span><span class="p">]</span> <span class="p">=</span> <span class="mi">7</span>
|
||||
<div class="highlight"><pre> <span class="nx">m</span><span class="p">[</span><span class="s">"k1"</span><span class="p">]</span> <span class="p">=</span> <span class="mi">7</span>
|
||||
<span class="nx">m</span><span class="p">[</span><span class="s">"k2"</span><span class="p">]</span> <span class="p">=</span> <span class="mi">13</span>
|
||||
</pre></div>
|
||||
|
||||
@ -112,7 +110,7 @@ its key/value pairs.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"map:"</span><span class="p">,</span> <span class="nx">m</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"map:"</span><span class="p">,</span> <span class="nx">m</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -125,7 +123,7 @@ its key/value pairs.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">v1</span> <span class="o">:=</span> <span class="nx">m</span><span class="p">[</span><span class="s">"k1"</span><span class="p">]</span>
|
||||
<div class="highlight"><pre> <span class="nx">v1</span> <span class="o">:=</span> <span class="nx">m</span><span class="p">[</span><span class="s">"k1"</span><span class="p">]</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"v1: "</span><span class="p">,</span> <span class="nx">v1</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -140,7 +138,7 @@ pairs when called on a map.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">m</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">m</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -154,7 +152,7 @@ a map.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nb">delete</span><span class="p">(</span><span class="nx">m</span><span class="p">,</span> <span class="s">"k2"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nb">delete</span><span class="p">(</span><span class="nx">m</span><span class="p">,</span> <span class="s">"k2"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"map:"</span><span class="p">,</span> <span class="nx">m</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -174,7 +172,7 @@ itself, so we ignored it with the <em>blank identifier</em>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">prs</span> <span class="o">:=</span> <span class="nx">m</span><span class="p">[</span><span class="s">"k2"</span><span class="p">]</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">prs</span> <span class="o">:=</span> <span class="nx">m</span><span class="p">[</span><span class="s">"k2"</span><span class="p">]</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"prs:"</span><span class="p">,</span> <span class="nx">prs</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -189,7 +187,7 @@ the same line with this syntax.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">n</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">"foo"</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"bar"</span><span class="p">:</span> <span class="mi">2</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">n</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">"foo"</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"bar"</span><span class="p">:</span> <span class="mi">2</span><span class="p">}</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"map:"</span><span class="p">,</span> <span class="nx">n</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -209,7 +207,7 @@ printed with <code>fmt.Println</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run maps.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run maps.go
|
||||
<span class="go">map: map[k1:7 k2:13]</span>
|
||||
<span class="go">v1: 7</span>
|
||||
<span class="go">len: 2</span>
|
||||
@ -232,5 +230,10 @@ printed with <code>fmt.Println</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/maps">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' m := make(map[string]int)\u000A');codeLines.push(' m[\"k1\"] = 7\u000A m[\"k2\"] = 13\u000A');codeLines.push(' fmt.Println(\"map:\", m)\u000A');codeLines.push(' v1 := m[\"k1\"]\u000A fmt.Println(\"v1: \", v1)\u000A');codeLines.push(' fmt.Println(\"len:\", len(m))\u000A');codeLines.push(' delete(m, \"k2\")\u000A fmt.Println(\"map:\", m)\u000A');codeLines.push(' _, prs := m[\"k2\"]\u000A fmt.Println(\"prs:\", prs)\u000A');codeLines.push(' n := map[string]int{\"foo\": 1, \"bar\": 2}\u000A fmt.Println(\"map:\", n)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/methods
generated
31
public/methods
generated
@ -32,7 +32,7 @@
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -41,10 +41,8 @@
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/ffMb0txGnYB">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/ffMb0txGnYB"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -56,7 +54,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -68,7 +66,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">rect</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">rect</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">width</span><span class="p">,</span> <span class="nx">height</span> <span class="kt">int</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -83,7 +81,7 @@
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="o">*</span><span class="nx">rect</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="o">*</span><span class="nx">rect</span><span class="p">)</span> <span class="nx">area</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nx">r</span><span class="p">.</span><span class="nx">width</span> <span class="o">*</span> <span class="nx">r</span><span class="p">.</span><span class="nx">height</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -99,7 +97,7 @@ receiver types. Here’s an example of a value receiver.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="nx">rect</span><span class="p">)</span> <span class="nx">perim</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">r</span> <span class="nx">rect</span><span class="p">)</span> <span class="nx">perim</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="mi">2</span><span class="o">*</span><span class="nx">r</span><span class="p">.</span><span class="nx">width</span> <span class="o">+</span> <span class="mi">2</span><span class="o">*</span><span class="nx">r</span><span class="p">.</span><span class="nx">height</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -113,7 +111,7 @@ receiver types. Here’s an example of a value receiver.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">r</span> <span class="o">:=</span> <span class="nx">rect</span><span class="p">{</span><span class="nx">width</span><span class="p">:</span> <span class="mi">10</span><span class="p">,</span> <span class="nx">height</span><span class="p">:</span> <span class="mi">5</span><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -127,7 +125,7 @@ receiver types. Here’s an example of a value receiver.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"area: "</span><span class="p">,</span> <span class="nx">r</span><span class="p">.</span><span class="nx">area</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"area: "</span><span class="p">,</span> <span class="nx">r</span><span class="p">.</span><span class="nx">area</span><span class="p">())</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"perim:"</span><span class="p">,</span> <span class="nx">r</span><span class="p">.</span><span class="nx">perim</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
@ -145,7 +143,7 @@ receiving struct.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">rp</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">r</span>
|
||||
<div class="highlight"><pre> <span class="nx">rp</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">r</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"area: "</span><span class="p">,</span> <span class="nx">rp</span><span class="p">.</span><span class="nx">area</span><span class="p">())</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"perim:"</span><span class="p">,</span> <span class="nx">rp</span><span class="p">.</span><span class="nx">perim</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
@ -164,7 +162,7 @@ receiving struct.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run methods.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run methods.go
|
||||
<span class="go">area: 50</span>
|
||||
<span class="go">perim: 30</span>
|
||||
<span class="go">area: 50</span>
|
||||
@ -182,7 +180,7 @@ naming related sets of methods: interfaces.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -197,5 +195,10 @@ naming related sets of methods: interfaces.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/methods">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('type rect struct {\u000A width, height int\u000A}\u000A');codeLines.push('func (r *rect) area() int {\u000A return r.width * r.height\u000A}\u000A');codeLines.push('func (r rect) perim() int {\u000A return 2*r.width + 2*r.height\u000A}\u000A');codeLines.push('func main() {\u000A r := rect{width: 10, height: 5}\u000A');codeLines.push(' fmt.Println(\"area: \", r.area())\u000A fmt.Println(\"perim:\", r.perim())\u000A');codeLines.push(' rp := &r\u000A fmt.Println(\"area: \", rp.area())\u000A fmt.Println(\"perim:\", rp.perim())\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/multiple-return-values
generated
27
public/multiple-return-values
generated
@ -34,7 +34,7 @@ to return both result and error values from a function.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ to return both result and error values from a function.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/FZoIB5LXQGZ">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/FZoIB5LXQGZ"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ to return both result and error values from a function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -72,7 +70,7 @@ the function returns 2 <code>int</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">vals</span><span class="p">()</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">vals</span><span class="p">()</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">7</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -86,7 +84,7 @@ the function returns 2 <code>int</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -100,7 +98,7 @@ call with <em>multiple assignment</em>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">a</span><span class="p">,</span> <span class="nx">b</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">a</span><span class="p">,</span> <span class="nx">b</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">a</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">b</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -116,7 +114,7 @@ use the blank identifier <code>_</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="nx">vals</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">c</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -134,7 +132,7 @@ use the blank identifier <code>_</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run multiple-return-values.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run multiple-return-values.go
|
||||
<span class="go">3</span>
|
||||
<span class="go">7</span>
|
||||
<span class="go">7</span>
|
||||
@ -151,7 +149,7 @@ feature of Go functions; we’ll look at this next.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -166,5 +164,10 @@ feature of Go functions; we’ll look at this next.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/multiple-return-values">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func vals() (int, int) {\u000A return 3, 7\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' a, b := vals()\u000A fmt.Println(a)\u000A fmt.Println(b)\u000A');codeLines.push(' _, c := vals()\u000A fmt.Println(c)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
41
public/mutexes
generated
41
public/mutexes
generated
@ -35,7 +35,7 @@ to safely access data across multiple goroutines.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ to safely access data across multiple goroutines.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/IRewFKz2OPN">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/IRewFKz2OPN"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ to safely access data across multiple goroutines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"math/rand"</span>
|
||||
<span class="s">"sync"</span>
|
||||
@ -77,7 +75,7 @@ to safely access data across multiple goroutines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -90,7 +88,7 @@ to safely access data across multiple goroutines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">state</span> <span class="p">=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">map</span><span class="p">[</span><span class="kt">int</span><span class="p">]</span><span class="kt">int</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">state</span> <span class="p">=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">map</span><span class="p">[</span><span class="kt">int</span><span class="p">]</span><span class="kt">int</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -103,7 +101,7 @@ to safely access data across multiple goroutines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">mutex</span> <span class="p">=</span> <span class="o">&</span><span class="nx">sync</span><span class="p">.</span><span class="nx">Mutex</span><span class="p">{}</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">mutex</span> <span class="p">=</span> <span class="o">&</span><span class="nx">sync</span><span class="p">.</span><span class="nx">Mutex</span><span class="p">{}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -117,7 +115,7 @@ operations we do.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">readOps</span> <span class="kt">uint64</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">readOps</span> <span class="kt">uint64</span>
|
||||
<span class="kd">var</span> <span class="nx">writeOps</span> <span class="kt">uint64</span>
|
||||
</pre></div>
|
||||
|
||||
@ -133,7 +131,7 @@ each goroutine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">r</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">r</span> <span class="p"><</span> <span class="mi">100</span><span class="p">;</span> <span class="nx">r</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">r</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">r</span> <span class="p"><</span> <span class="mi">100</span><span class="p">;</span> <span class="nx">r</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">total</span> <span class="o">:=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
@ -154,7 +152,7 @@ the <code>readOps</code> count.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">key</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">key</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||||
<span class="nx">mutex</span><span class="p">.</span><span class="nx">Lock</span><span class="p">()</span>
|
||||
<span class="nx">total</span> <span class="o">+=</span> <span class="nx">state</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span>
|
||||
<span class="nx">mutex</span><span class="p">.</span><span class="nx">Unlock</span><span class="p">()</span>
|
||||
@ -171,7 +169,7 @@ the <code>readOps</code> count.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="p">}()</span>
|
||||
<span class="p">}</span>
|
||||
@ -188,7 +186,7 @@ using the same pattern we did for reads.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">w</span> <span class="p"><</span> <span class="mi">10</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">w</span> <span class="p"><</span> <span class="mi">10</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
<span class="nx">key</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||||
@ -214,7 +212,7 @@ using the same pattern we did for reads.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -227,7 +225,7 @@ using the same pattern we did for reads.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">readOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">readOps</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">readOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">readOps</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"readOps:"</span><span class="p">,</span> <span class="nx">readOpsFinal</span><span class="p">)</span>
|
||||
<span class="nx">writeOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">writeOps</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"writeOps:"</span><span class="p">,</span> <span class="nx">writeOpsFinal</span><span class="p">)</span>
|
||||
@ -243,7 +241,7 @@ using the same pattern we did for reads.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">mutex</span><span class="p">.</span><span class="nx">Lock</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">mutex</span><span class="p">.</span><span class="nx">Lock</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"state:"</span><span class="p">,</span> <span class="nx">state</span><span class="p">)</span>
|
||||
<span class="nx">mutex</span><span class="p">.</span><span class="nx">Unlock</span><span class="p">()</span>
|
||||
<span class="p">}</span>
|
||||
@ -265,7 +263,7 @@ using the same pattern we did for reads.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run mutexes.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run mutexes.go
|
||||
<span class="go">readOps: 83285</span>
|
||||
<span class="go">writeOps: 8320</span>
|
||||
<span class="go">state: map[1:97 4:53 0:33 2:15 3:2]</span>
|
||||
@ -282,7 +280,7 @@ management task using only goroutines and channels.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -297,5 +295,10 @@ management task using only goroutines and channels.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/mutexes">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"math/rand\"\u000A \"sync\"\u000A \"sync/atomic\"\u000A \"time\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var state = make(map[int]int)\u000A');codeLines.push(' var mutex = &sync.Mutex{}\u000A');codeLines.push(' var readOps uint64\u000A var writeOps uint64\u000A');codeLines.push(' for r := 0; r \x3C 100; r++ {\u000A go func() {\u000A total := 0\u000A for {\u000A');codeLines.push(' key := rand.Intn(5)\u000A mutex.Lock()\u000A total += state[key]\u000A mutex.Unlock()\u000A atomic.AddUint64(&readOps, 1)\u000A');codeLines.push(' time.Sleep(time.Millisecond)\u000A }\u000A }()\u000A }\u000A');codeLines.push(' for w := 0; w \x3C 10; w++ {\u000A go func() {\u000A for {\u000A key := rand.Intn(5)\u000A val := rand.Intn(100)\u000A mutex.Lock()\u000A state[key] = val\u000A mutex.Unlock()\u000A atomic.AddUint64(&writeOps, 1)\u000A time.Sleep(time.Millisecond)\u000A }\u000A }()\u000A }\u000A');codeLines.push(' time.Sleep(time.Second)\u000A');codeLines.push(' readOpsFinal := atomic.LoadUint64(&readOps)\u000A fmt.Println(\"readOps:\", readOpsFinal)\u000A writeOpsFinal := atomic.LoadUint64(&writeOps)\u000A fmt.Println(\"writeOps:\", writeOpsFinal)\u000A');codeLines.push(' mutex.Lock()\u000A fmt.Println(\"state:\", state)\u000A mutex.Unlock()\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/non-blocking-channel-operations
generated
25
public/non-blocking-channel-operations
generated
@ -35,7 +35,7 @@ non-blocking multi-way <code>select</code>s.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ non-blocking multi-way <code>select</code>s.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/n5ttmOsMrrJ">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/n5ttmOsMrrJ"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ non-blocking multi-way <code>select</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ non-blocking multi-way <code>select</code>s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">messages</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
<span class="nx">signals</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">bool</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -89,7 +87,7 @@ it will immediately take the <code>default</code> case.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">msg</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">messages</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"received message"</span><span class="p">,</span> <span class="nx">msg</span><span class="p">)</span>
|
||||
<span class="k">default</span><span class="p">:</span>
|
||||
@ -110,7 +108,7 @@ Therefore the <code>default</code> case is selected.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">msg</span> <span class="o">:=</span> <span class="s">"hi"</span>
|
||||
<div class="highlight"><pre> <span class="nx">msg</span> <span class="o">:=</span> <span class="s">"hi"</span>
|
||||
<span class="k">select</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">messages</span> <span class="o"><-</span> <span class="nx">msg</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"sent message"</span><span class="p">,</span> <span class="nx">msg</span><span class="p">)</span>
|
||||
@ -132,7 +130,7 @@ on both <code>messages</code> and <code>signals</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">msg</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">messages</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"received message"</span><span class="p">,</span> <span class="nx">msg</span><span class="p">)</span>
|
||||
<span class="k">case</span> <span class="nx">sig</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">signals</span><span class="p">:</span>
|
||||
@ -156,7 +154,7 @@ on both <code>messages</code> and <code>signals</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run non-blocking-channel-operations.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run non-blocking-channel-operations.go
|
||||
<span class="go">no message received</span>
|
||||
<span class="go">no message sent</span>
|
||||
<span class="go">no activity</span>
|
||||
@ -176,5 +174,10 @@ on both <code>messages</code> and <code>signals</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/non-blocking-channel-operations">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A messages := make(chan string)\u000A signals := make(chan bool)\u000A');codeLines.push(' select {\u000A case msg := \x3C-messages:\u000A fmt.Println(\"received message\", msg)\u000A default:\u000A fmt.Println(\"no message received\")\u000A }\u000A');codeLines.push(' msg := \"hi\"\u000A select {\u000A case messages \x3C- msg:\u000A fmt.Println(\"sent message\", msg)\u000A default:\u000A fmt.Println(\"no message sent\")\u000A }\u000A');codeLines.push(' select {\u000A case msg := \x3C-messages:\u000A fmt.Println(\"received message\", msg)\u000A case sig := \x3C-signals:\u000A fmt.Println(\"received signal\", sig)\u000A default:\u000A fmt.Println(\"no activity\")\u000A }\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
33
public/number-parsing
generated
33
public/number-parsing
generated
@ -33,7 +33,7 @@ in many programs; here’s how to do it in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ in many programs; here’s how to do it in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/NZh4LjhguvN">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/NZh4LjhguvN"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ parsing.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"strconv"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"strconv"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -72,7 +70,7 @@ parsing.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ precision to parse.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseFloat</span><span class="p">(</span><span class="s">"1.234"</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseFloat</span><span class="p">(</span><span class="s">"1.234"</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -102,7 +100,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">i</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseInt</span><span class="p">(</span><span class="s">"123"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">i</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseInt</span><span class="p">(</span><span class="s">"123"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -116,7 +114,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">d</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseInt</span><span class="p">(</span><span class="s">"0x1c8"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">d</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseInt</span><span class="p">(</span><span class="s">"0x1c8"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -130,7 +128,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">u</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseUint</span><span class="p">(</span><span class="s">"789"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">u</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">ParseUint</span><span class="p">(</span><span class="s">"789"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -145,7 +143,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">k</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">Atoi</span><span class="p">(</span><span class="s">"135"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">k</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">Atoi</span><span class="p">(</span><span class="s">"135"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">k</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -159,7 +157,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">Atoi</span><span class="p">(</span><span class="s">"wat"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nx">Atoi</span><span class="p">(</span><span class="s">"wat"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -177,7 +175,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run number-parsing.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run number-parsing.go
|
||||
<span class="go">1.234</span>
|
||||
<span class="go">123</span>
|
||||
<span class="go">456</span>
|
||||
@ -196,7 +194,7 @@ bits.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -211,5 +209,10 @@ bits.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/number-parsing">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"strconv\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' f, _ := strconv.ParseFloat(\"1.234\", 64)\u000A fmt.Println(f)\u000A');codeLines.push(' i, _ := strconv.ParseInt(\"123\", 0, 64)\u000A fmt.Println(i)\u000A');codeLines.push(' d, _ := strconv.ParseInt(\"0x1c8\", 0, 64)\u000A fmt.Println(d)\u000A');codeLines.push(' u, _ := strconv.ParseUint(\"789\", 0, 64)\u000A fmt.Println(u)\u000A');codeLines.push(' k, _ := strconv.Atoi(\"135\")\u000A fmt.Println(k)\u000A');codeLines.push(' _, e := strconv.Atoi(\"wat\")\u000A fmt.Println(e)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/panic
generated
27
public/panic
generated
@ -35,7 +35,7 @@ aren’t prepared to handle gracefully.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ aren’t prepared to handle gracefully.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/91HXbZZZopt">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/91HXbZZZopt"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ aren’t prepared to handle gracefully.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"os"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ aren’t prepared to handle gracefully.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ site designed to panic.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nb">panic</span><span class="p">(</span><span class="s">"a problem"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nb">panic</span><span class="p">(</span><span class="s">"a problem"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -102,7 +100,7 @@ returns an error value that we don’t know how to
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="s">"/tmp/file"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="s">"/tmp/file"</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -125,7 +123,7 @@ a non-zero status.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run panic.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run panic.go
|
||||
<span class="go">panic: a problem</span>
|
||||
</pre></div>
|
||||
|
||||
@ -138,7 +136,7 @@ a non-zero status.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="go">goroutine 1 [running]:</span>
|
||||
<div class="highlight"><pre><span class="go">goroutine 1 [running]:</span>
|
||||
<span class="go">main.main()</span>
|
||||
<span class="go"> /.../panic.go:12 +0x47</span>
|
||||
<span class="go">...</span>
|
||||
@ -157,7 +155,7 @@ to use error-indicating return values wherever possible.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -172,5 +170,10 @@ to use error-indicating return values wherever possible.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/panic">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"os\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' panic(\"a problem\")\u000A');codeLines.push(' _, err := os.Create(\"/tmp/file\")\u000A if err != nil {\u000A panic(err)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/pointers
generated
29
public/pointers
generated
@ -34,7 +34,7 @@ within your program.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ within your program.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/fnQkHp4hriG">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/fnQkHp4hriG"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ within your program.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -75,7 +73,7 @@ from the one in the calling function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">zeroval</span><span class="p">(</span><span class="nx">ival</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">zeroval</span><span class="p">(</span><span class="nx">ival</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">ival</span> <span class="p">=</span> <span class="mi">0</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -95,7 +93,7 @@ value at the referenced address.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">zeroptr</span><span class="p">(</span><span class="nx">iptr</span> <span class="o">*</span><span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">zeroptr</span><span class="p">(</span><span class="nx">iptr</span> <span class="o">*</span><span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="o">*</span><span class="nx">iptr</span> <span class="p">=</span> <span class="mi">0</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -109,7 +107,7 @@ value at the referenced address.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"initial:"</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -123,7 +121,7 @@ value at the referenced address.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">zeroval</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">zeroval</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"zeroval:"</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -138,7 +136,7 @@ i.e. a pointer to <code>i</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">zeroptr</span><span class="p">(</span><span class="o">&</span><span class="nx">i</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">zeroptr</span><span class="p">(</span><span class="o">&</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"zeroptr:"</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -152,7 +150,7 @@ i.e. a pointer to <code>i</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"pointer:"</span><span class="p">,</span> <span class="o">&</span><span class="nx">i</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"pointer:"</span><span class="p">,</span> <span class="o">&</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -172,7 +170,7 @@ the memory address for that variable.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run pointers.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run pointers.go
|
||||
<span class="go">initial: 1</span>
|
||||
<span class="go">zeroval: 1</span>
|
||||
<span class="go">zeroptr: 0</span>
|
||||
@ -193,5 +191,10 @@ the memory address for that variable.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/pointers">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func zeroval(ival int) {\u000A ival = 0\u000A}\u000A');codeLines.push('func zeroptr(iptr *int) {\u000A *iptr = 0\u000A}\u000A');codeLines.push('func main() {\u000A i := 1\u000A fmt.Println(\"initial:\", i)\u000A');codeLines.push(' zeroval(i)\u000A fmt.Println(\"zeroval:\", i)\u000A');codeLines.push(' zeroptr(&i)\u000A fmt.Println(\"zeroptr:\", i)\u000A');codeLines.push(' fmt.Println(\"pointer:\", &i)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
33
public/random-numbers
generated
33
public/random-numbers
generated
@ -34,7 +34,7 @@ generation.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ generation.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/jiJaIjxL2sP">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/jiJaIjxL2sP"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ generation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"math/rand"</span>
|
||||
</pre></div>
|
||||
@ -72,7 +70,7 @@ generation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ generation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">","</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">","</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
@ -102,7 +100,7 @@ generation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Float64</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Float64</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -116,7 +114,7 @@ other ranges, for example <code>5.0 <= f' < 10.0</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">((</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Float64</span><span class="p">()</span><span class="o">*</span><span class="mi">5</span><span class="p">)</span><span class="o">+</span><span class="mi">5</span><span class="p">,</span> <span class="s">","</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">((</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Float64</span><span class="p">()</span><span class="o">*</span><span class="mi">5</span><span class="p">)</span><span class="o">+</span><span class="mi">5</span><span class="p">,</span> <span class="s">","</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">((</span><span class="nx">rand</span><span class="p">.</span><span class="nx">Float64</span><span class="p">()</span> <span class="o">*</span> <span class="mi">5</span><span class="p">)</span> <span class="o">+</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
@ -135,7 +133,7 @@ intend to be secret, use <code>crypto/rand</code> for those.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s1</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">NewSource</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">().</span><span class="nx">UnixNano</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">s1</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">NewSource</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">().</span><span class="nx">UnixNano</span><span class="p">())</span>
|
||||
<span class="nx">r1</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">New</span><span class="p">(</span><span class="nx">s1</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -150,7 +148,7 @@ functions on the <code>rand</code> package.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r1</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">","</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r1</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">","</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r1</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
@ -166,7 +164,7 @@ produces the same sequence of random numbers.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s2</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">NewSource</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">s2</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">NewSource</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
|
||||
<span class="nx">r2</span> <span class="o">:=</span> <span class="nx">rand</span><span class="p">.</span><span class="nx">New</span><span class="p">(</span><span class="nx">s2</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r2</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">),</span> <span class="s">","</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">r2</span><span class="p">.</span><span class="nx">Intn</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
|
||||
@ -191,7 +189,7 @@ produces the same sequence of random numbers.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run random-numbers.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run random-numbers.go
|
||||
<span class="go">81,87</span>
|
||||
<span class="go">0.6645600532184904</span>
|
||||
<span class="go">7.123187485356329,8.434115364335547</span>
|
||||
@ -212,7 +210,7 @@ that Go can provide.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -227,5 +225,10 @@ that Go can provide.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/random-numbers">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000Aimport \"math/rand\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' fmt.Print(rand.Intn(100), \",\")\u000A fmt.Print(rand.Intn(100))\u000A fmt.Println()\u000A');codeLines.push(' fmt.Println(rand.Float64())\u000A');codeLines.push(' fmt.Print((rand.Float64()*5)+5, \",\")\u000A fmt.Print((rand.Float64() * 5) + 5)\u000A fmt.Println()\u000A');codeLines.push(' s1 := rand.NewSource(time.Now().UnixNano())\u000A r1 := rand.New(s1)\u000A');codeLines.push(' fmt.Print(r1.Intn(100), \",\")\u000A fmt.Print(r1.Intn(100))\u000A fmt.Println()\u000A');codeLines.push(' s2 := rand.NewSource(42)\u000A r2 := rand.New(s2)\u000A fmt.Print(r2.Intn(100), \",\")\u000A fmt.Print(r2.Intn(100))\u000A fmt.Println()\u000A s3 := rand.NewSource(42)\u000A r3 := rand.New(s3)\u000A fmt.Print(r3.Intn(100), \",\")\u000A fmt.Print(r3.Intn(100))\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/range
generated
29
public/range
generated
@ -34,7 +34,7 @@ of the data structures we’ve already learned.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ of the data structures we’ve already learned.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/JTY1VAUjfBw">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/JTY1VAUjfBw"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ of the data structures we’ve already learned.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -70,7 +68,7 @@ of the data structures we’ve already learned.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -84,7 +82,7 @@ Arrays work like this too.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">nums</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">nums</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<span class="nx">sum</span> <span class="o">:=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">num</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">nums</span> <span class="p">{</span>
|
||||
<span class="nx">sum</span> <span class="o">+=</span> <span class="nx">num</span>
|
||||
@ -106,7 +104,7 @@ the indexes though.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">num</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">nums</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">num</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">nums</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">num</span> <span class="o">==</span> <span class="mi">3</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"index:"</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -123,7 +121,7 @@ the indexes though.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">kvs</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">string</span><span class="p">{</span><span class="s">"a"</span><span class="p">:</span> <span class="s">"apple"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">:</span> <span class="s">"banana"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">kvs</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">string</span><span class="p">{</span><span class="s">"a"</span><span class="p">:</span> <span class="s">"apple"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">:</span> <span class="s">"banana"</span><span class="p">}</span>
|
||||
<span class="k">for</span> <span class="nx">k</span><span class="p">,</span> <span class="nx">v</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">kvs</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%s -> %s\n"</span><span class="p">,</span> <span class="nx">k</span><span class="p">,</span> <span class="nx">v</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -139,7 +137,7 @@ the indexes though.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">k</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">kvs</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">k</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">kvs</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"key:"</span><span class="p">,</span> <span class="nx">k</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -156,7 +154,7 @@ of the <code>rune</code> and the second the <code>rune</code> itself.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="k">range</span> <span class="s">"go"</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="k">range</span> <span class="s">"go"</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="nx">c</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="p">}</span>
|
||||
@ -175,7 +173,7 @@ of the <code>rune</code> and the second the <code>rune</code> itself.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run range.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run range.go
|
||||
<span class="go">sum: 9</span>
|
||||
<span class="go">index: 1</span>
|
||||
<span class="go">a -> apple</span>
|
||||
@ -200,5 +198,10 @@ of the <code>rune</code> and the second the <code>rune</code> itself.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/range">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' nums := []int{2, 3, 4}\u000A sum := 0\u000A for _, num := range nums {\u000A sum += num\u000A }\u000A fmt.Println(\"sum:\", sum)\u000A');codeLines.push(' for i, num := range nums {\u000A if num == 3 {\u000A fmt.Println(\"index:\", i)\u000A }\u000A }\u000A');codeLines.push(' kvs := map[string]string{\"a\": \"apple\", \"b\": \"banana\"}\u000A for k, v := range kvs {\u000A fmt.Printf(\"%s -\x3E %s\\n\", k, v)\u000A }\u000A');codeLines.push(' for k := range kvs {\u000A fmt.Println(\"key:\", k)\u000A }\u000A');codeLines.push(' for i, c := range \"go\" {\u000A fmt.Println(i, c)\u000A }\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/range-over-channels
generated
25
public/range-over-channels
generated
@ -35,7 +35,7 @@ values received from a channel.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ values received from a channel.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/QnARPm-ddFB">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/QnARPm-ddFB"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ values received from a channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ values received from a channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -84,7 +82,7 @@ values received from a channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">queue</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">queue</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="nx">queue</span> <span class="o"><-</span> <span class="s">"one"</span>
|
||||
<span class="nx">queue</span> <span class="o"><-</span> <span class="s">"two"</span>
|
||||
<span class="nb">close</span><span class="p">(</span><span class="nx">queue</span><span class="p">)</span>
|
||||
@ -103,7 +101,7 @@ receiving the 2 elements.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">elem</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">queue</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">elem</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">queue</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">elem</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="p">}</span>
|
||||
@ -122,7 +120,7 @@ receiving the 2 elements.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run range-over-channels.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run range-over-channels.go
|
||||
<span class="go">one</span>
|
||||
<span class="go">two</span>
|
||||
</pre></div>
|
||||
@ -139,7 +137,7 @@ values be received.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -154,5 +152,10 @@ values be received.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/range-over-channels">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' queue := make(chan string, 2)\u000A queue \x3C- \"one\"\u000A queue \x3C- \"two\"\u000A close(queue)\u000A');codeLines.push(' for elem := range queue {\u000A fmt.Println(elem)\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
35
public/rate-limiting
generated
35
public/rate-limiting
generated
@ -36,7 +36,7 @@ channels, and <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ channels, and <a href="tickers">tickers</a>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/l4uDE-RCDpa">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/l4uDE-RCDpa"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ channels, and <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -73,7 +71,7 @@ channels, and <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -89,7 +87,7 @@ same name.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">requests</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">requests</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">requests</span> <span class="o"><-</span> <span class="nx">i</span>
|
||||
<span class="p">}</span>
|
||||
@ -108,7 +106,7 @@ our rate limiting scheme.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">limiter</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="mi">200</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">limiter</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="mi">200</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -123,7 +121,7 @@ before serving each request, we limit ourselves to
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">req</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">requests</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">req</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">requests</span> <span class="p">{</span>
|
||||
<span class="o"><-</span><span class="nx">limiter</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"request"</span><span class="p">,</span> <span class="nx">req</span><span class="p">,</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">())</span>
|
||||
<span class="p">}</span>
|
||||
@ -143,7 +141,7 @@ channel will allow bursts of up to 3 events.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">burstyLimiter</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Time</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">burstyLimiter</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Time</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -156,7 +154,7 @@ channel will allow bursts of up to 3 events.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">burstyLimiter</span> <span class="o"><-</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -172,7 +170,7 @@ value to <code>burstyLimiter</code>, up to its limit of 3.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">t</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="mi">200</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">burstyLimiter</span> <span class="o"><-</span> <span class="nx">t</span>
|
||||
<span class="p">}</span>
|
||||
@ -191,7 +189,7 @@ of <code>burstyLimiter</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">burstyRequests</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">burstyRequests</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">burstyRequests</span> <span class="o"><-</span> <span class="nx">i</span>
|
||||
<span class="p">}</span>
|
||||
@ -218,7 +216,7 @@ handled once every ~200 milliseconds as desired.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run rate-limiting.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run rate-limiting.go
|
||||
<span class="go">request 1 2012-10-19 00:38:18.687438 +0000 UTC</span>
|
||||
<span class="go">request 2 2012-10-19 00:38:18.887471 +0000 UTC</span>
|
||||
<span class="go">request 3 2012-10-19 00:38:19.087238 +0000 UTC</span>
|
||||
@ -238,7 +236,7 @@ then serve the remaining 2 with ~200ms delays each.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="go">request 1 2012-10-19 00:38:20.487578 +0000 UTC</span>
|
||||
<div class="highlight"><pre><span class="go">request 1 2012-10-19 00:38:20.487578 +0000 UTC</span>
|
||||
<span class="go">request 2 2012-10-19 00:38:20.487645 +0000 UTC</span>
|
||||
<span class="go">request 3 2012-10-19 00:38:20.487676 +0000 UTC</span>
|
||||
<span class="go">request 4 2012-10-19 00:38:20.687483 +0000 UTC</span>
|
||||
@ -259,5 +257,10 @@ then serve the remaining 2 with ~200ms delays each.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/rate-limiting">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' requests := make(chan int, 5)\u000A for i := 1; i \x3C= 5; i++ {\u000A requests \x3C- i\u000A }\u000A close(requests)\u000A');codeLines.push(' limiter := time.Tick(200 * time.Millisecond)\u000A');codeLines.push(' for req := range requests {\u000A \x3C-limiter\u000A fmt.Println(\"request\", req, time.Now())\u000A }\u000A');codeLines.push(' burstyLimiter := make(chan time.Time, 3)\u000A');codeLines.push(' for i := 0; i \x3C 3; i++ {\u000A burstyLimiter \x3C- time.Now()\u000A }\u000A');codeLines.push(' go func() {\u000A for t := range time.Tick(200 * time.Millisecond) {\u000A burstyLimiter \x3C- t\u000A }\u000A }()\u000A');codeLines.push(' burstyRequests := make(chan int, 5)\u000A for i := 1; i \x3C= 5; i++ {\u000A burstyRequests \x3C- i\u000A }\u000A close(burstyRequests)\u000A for req := range burstyRequests {\u000A \x3C-burstyLimiter\u000A fmt.Println(\"request\", req, time.Now())\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
39
public/reading-files
generated
39
public/reading-files
generated
@ -34,7 +34,7 @@ reading files.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ reading files.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/cocJ6kBH_iZ">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/cocJ6kBH_iZ"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ reading files.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"bufio"</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"io"</span>
|
||||
@ -78,7 +76,7 @@ This helper will streamline our error checks below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">e</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -94,7 +92,7 @@ This helper will streamline our error checks below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -108,7 +106,7 @@ slurping a file’s entire contents into memory.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">dat</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadFile</span><span class="p">(</span><span class="s">"/tmp/dat"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">dat</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">ReadFile</span><span class="p">(</span><span class="s">"/tmp/dat"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">dat</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
@ -125,7 +123,7 @@ by <code>Open</code>ing a file to obtain an <code>os.File</code> value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Open</span><span class="p">(</span><span class="s">"/tmp/dat"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Open</span><span class="p">(</span><span class="s">"/tmp/dat"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -141,7 +139,7 @@ actually were read.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">b1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">byte</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">b1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">byte</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span>
|
||||
<span class="nx">n1</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Read</span><span class="p">(</span><span class="nx">b1</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%d bytes: %s\n"</span><span class="p">,</span> <span class="nx">n1</span><span class="p">,</span> <span class="nb">string</span><span class="p">(</span><span class="nx">b1</span><span class="p">[:</span><span class="nx">n1</span><span class="p">]))</span>
|
||||
@ -158,7 +156,7 @@ and <code>Read</code> from there.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">o2</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">o2</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">b2</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">byte</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="nx">n2</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Read</span><span class="p">(</span><span class="nx">b2</span><span class="p">)</span>
|
||||
@ -180,7 +178,7 @@ implemented with <code>ReadAtLeast</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">o3</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">o3</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">b3</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">byte</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="nx">n3</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">io</span><span class="p">.</span><span class="nx">ReadAtLeast</span><span class="p">(</span><span class="nx">f</span><span class="p">,</span> <span class="nx">b3</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
@ -199,7 +197,7 @@ accomplishes this.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Seek</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -216,7 +214,7 @@ reading methods it provides.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">r4</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewReader</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">r4</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewReader</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<span class="nx">b4</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">r4</span><span class="p">.</span><span class="nx">Peek</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"5 bytes: %s\n"</span><span class="p">,</span> <span class="nb">string</span><span class="p">(</span><span class="nx">b4</span><span class="p">))</span>
|
||||
@ -234,7 +232,7 @@ be scheduled immediately after <code>Open</code>ing with
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -251,7 +249,7 @@ be scheduled immediately after <code>Open</code>ing with
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">echo</span> <span class="s2">"hello"</span> > /tmp/dat
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">echo</span> <span class="s2">"hello"</span> > /tmp/dat
|
||||
<span class="gp">$</span> <span class="nb">echo</span> <span class="s2">"go"</span> >> /tmp/dat
|
||||
<span class="gp">$</span> go run reading-files.go
|
||||
<span class="go">hello</span>
|
||||
@ -272,7 +270,7 @@ be scheduled immediately after <code>Open</code>ing with
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -287,5 +285,10 @@ be scheduled immediately after <code>Open</code>ing with
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/reading-files">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"bufio\"\u000A \"fmt\"\u000A \"io\"\u000A \"io/ioutil\"\u000A \"os\"\u000A)\u000A');codeLines.push('func check(e error) {\u000A if e != nil {\u000A panic(e)\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' dat, err := ioutil.ReadFile(\"/tmp/dat\")\u000A check(err)\u000A fmt.Print(string(dat))\u000A');codeLines.push(' f, err := os.Open(\"/tmp/dat\")\u000A check(err)\u000A');codeLines.push(' b1 := make([]byte, 5)\u000A n1, err := f.Read(b1)\u000A check(err)\u000A fmt.Printf(\"%d bytes: %s\\n\", n1, string(b1[:n1]))\u000A');codeLines.push(' o2, err := f.Seek(6, 0)\u000A check(err)\u000A b2 := make([]byte, 2)\u000A n2, err := f.Read(b2)\u000A check(err)\u000A fmt.Printf(\"%d bytes @ %d: \", n2, o2)\u000A fmt.Printf(\"%v\\n\", string(b2[:n2]))\u000A');codeLines.push(' o3, err := f.Seek(6, 0)\u000A check(err)\u000A b3 := make([]byte, 2)\u000A n3, err := io.ReadAtLeast(f, b3, 2)\u000A check(err)\u000A fmt.Printf(\"%d bytes @ %d: %s\\n\", n3, o3, string(b3))\u000A');codeLines.push(' _, err = f.Seek(0, 0)\u000A check(err)\u000A');codeLines.push(' r4 := bufio.NewReader(f)\u000A b4, err := r4.Peek(5)\u000A check(err)\u000A fmt.Printf(\"5 bytes: %s\\n\", string(b4))\u000A');codeLines.push(' f.Close()\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
21
public/recursion
generated
21
public/recursion
generated
@ -34,7 +34,7 @@ Here’s a classic factorial example.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ Here’s a classic factorial example.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/4yUp5wLVyiG">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/4yUp5wLVyiG"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ Here’s a classic factorial example.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -72,7 +70,7 @@ base case of <code>fact(0)</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">fact</span><span class="p">(</span><span class="nx">n</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">fact</span><span class="p">(</span><span class="nx">n</span> <span class="kt">int</span><span class="p">)</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">n</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="mi">1</span>
|
||||
<span class="p">}</span>
|
||||
@ -89,7 +87,7 @@ base case of <code>fact(0)</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">fact</span><span class="p">(</span><span class="mi">7</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -107,7 +105,7 @@ base case of <code>fact(0)</code>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run recursion.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run recursion.go
|
||||
<span class="go">5040</span>
|
||||
</pre></div>
|
||||
|
||||
@ -125,5 +123,10 @@ base case of <code>fact(0)</code>.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/recursion">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func fact(n int) int {\u000A if n == 0 {\u000A return 1\u000A }\u000A return n * fact(n-1)\u000A}\u000A');codeLines.push('func main() {\u000A fmt.Println(fact(7))\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
49
public/regular-expressions
generated
49
public/regular-expressions
generated
@ -34,7 +34,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/qR5gn2l0AGa">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/qR5gn2l0AGa"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"bytes"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"bytes"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"regexp"</span>
|
||||
</pre></div>
|
||||
@ -72,7 +70,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -85,7 +83,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">match</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">MatchString</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">match</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">MatchString</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">,</span> <span class="s">"peach"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">match</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -101,7 +99,7 @@ optimized <code>Regexp</code> struct.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">r</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">Compile</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">r</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">Compile</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -115,7 +113,7 @@ a match test like we saw earlier.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">MatchString</span><span class="p">(</span><span class="s">"peach"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">MatchString</span><span class="p">(</span><span class="s">"peach"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -128,7 +126,7 @@ a match test like we saw earlier.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindString</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindString</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -143,7 +141,7 @@ matching text.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringIndex</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringIndex</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -159,7 +157,7 @@ information for both <code>p([a-z]+)ch</code> and <code>([a-z]+)</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringSubmatch</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringSubmatch</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -173,7 +171,7 @@ indexes of matches and submatches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringSubmatchIndex</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindStringSubmatchIndex</span><span class="p">(</span><span class="s">"peach punch"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -188,7 +186,7 @@ example to find all matches for a regexp.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllString</span><span class="p">(</span><span class="s">"peach punch pinch"</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllString</span><span class="p">(</span><span class="s">"peach punch pinch"</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -202,7 +200,7 @@ functions we saw above as well.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllStringSubmatchIndex</span><span class="p">(</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllStringSubmatchIndex</span><span class="p">(</span>
|
||||
<span class="s">"peach punch pinch"</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -218,7 +216,7 @@ of matches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllString</span><span class="p">(</span><span class="s">"peach punch pinch"</span><span class="p">,</span> <span class="mi">2</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">FindAllString</span><span class="p">(</span><span class="s">"peach punch pinch"</span><span class="p">,</span> <span class="mi">2</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -234,7 +232,7 @@ function name.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">Match</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"peach"</span><span class="p">)))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">Match</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"peach"</span><span class="p">)))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -250,7 +248,7 @@ constants because it has 2 return values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">r</span> <span class="p">=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">MustCompile</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">r</span> <span class="p">=</span> <span class="nx">regexp</span><span class="p">.</span><span class="nx">MustCompile</span><span class="p">(</span><span class="s">"p([a-z]+)ch"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -265,7 +263,7 @@ subsets of strings with other values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">ReplaceAllString</span><span class="p">(</span><span class="s">"a peach"</span><span class="p">,</span> <span class="s">"<fruit>"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">r</span><span class="p">.</span><span class="nx">ReplaceAllString</span><span class="p">(</span><span class="s">"a peach"</span><span class="p">,</span> <span class="s">"<fruit>"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -279,7 +277,7 @@ text with a given function.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">in</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"a peach"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">in</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"a peach"</span><span class="p">)</span>
|
||||
<span class="nx">out</span> <span class="o">:=</span> <span class="nx">r</span><span class="p">.</span><span class="nx">ReplaceAllFunc</span><span class="p">(</span><span class="nx">in</span><span class="p">,</span> <span class="nx">bytes</span><span class="p">.</span><span class="nx">ToUpper</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">out</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
@ -298,7 +296,7 @@ text with a given function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run regular-expressions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run regular-expressions.go
|
||||
<span class="go">true</span>
|
||||
<span class="go">true</span>
|
||||
<span class="go">peach</span>
|
||||
@ -325,7 +323,7 @@ the <a href="http://golang.org/pkg/regexp/"><code>regexp</code></a> package docs
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -340,5 +338,10 @@ the <a href="http://golang.org/pkg/regexp/"><code>regexp</code></a> package docs
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/regular-expressions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"bytes\"\u000Aimport \"fmt\"\u000Aimport \"regexp\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' match, _ := regexp.MatchString(\"p([a-z]+)ch\", \"peach\")\u000A fmt.Println(match)\u000A');codeLines.push(' r, _ := regexp.Compile(\"p([a-z]+)ch\")\u000A');codeLines.push(' fmt.Println(r.MatchString(\"peach\"))\u000A');codeLines.push(' fmt.Println(r.FindString(\"peach punch\"))\u000A');codeLines.push(' fmt.Println(r.FindStringIndex(\"peach punch\"))\u000A');codeLines.push(' fmt.Println(r.FindStringSubmatch(\"peach punch\"))\u000A');codeLines.push(' fmt.Println(r.FindStringSubmatchIndex(\"peach punch\"))\u000A');codeLines.push(' fmt.Println(r.FindAllString(\"peach punch pinch\", -1))\u000A');codeLines.push(' fmt.Println(r.FindAllStringSubmatchIndex(\u000A \"peach punch pinch\", -1))\u000A');codeLines.push(' fmt.Println(r.FindAllString(\"peach punch pinch\", 2))\u000A');codeLines.push(' fmt.Println(r.Match([]byte(\"peach\")))\u000A');codeLines.push(' r = regexp.MustCompile(\"p([a-z]+)ch\")\u000A fmt.Println(r)\u000A');codeLines.push(' fmt.Println(r.ReplaceAllString(\"a peach\", \"\x3Cfruit\x3E\"))\u000A');codeLines.push(' in := []byte(\"a peach\")\u000A out := r.ReplaceAllFunc(in, bytes.ToUpper)\u000A fmt.Println(string(out))\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/select
generated
27
public/select
generated
@ -34,7 +34,7 @@ select is a powerful feature of Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ select is a powerful feature of Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/ZdSOPe1Gj13">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAPCAYAAADtc08vAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAJ1SURBVCjPY/j//z8DMu7o6GAAgpQgD9tLqcmJH4KDg14aaik/MtdXe2ZjY6OCrh6Fs2jRYmZ9Pd05M9uL/u9dPfU/CLS0dfxvKIz/X5Dg/z8pKdkGqwGpqakMUdExDHJSYqt37tjxf+qUSf9rc2P+79298/+RA3v+H1zV///o6r7/DrbWFQkJiQwxMTGoBjAxMTpKiQmuqMuP/f/xw/v/J0+f/W9tbvTfxVLn/8rJVf+v757z/96hRf8TQtxuCQmLMjk4OKAawMfDVWVvrvd85eTq/7tXTP6/e/XM/22lif9LCnL+b13Q/v/Kzln/L++c/X/7/Jb/VpYWuZFRUagGAAErEBtlxvi+vn944f9L26cDNcz6v21R9/8zm6aC2SBDbu+f/78kK+4/L79AO7oBYCAqxD/57JZp/y/tmPX/wrYZ/6+CbAayD6zs/78daBjIgPayFJAGG6wGAIFAcpjH/dv7F4ANABuya/b/Od3l/ye2V/+/tnv2/7ldxSANmrgMYGBhZg7fuagD7GyYIeeBrrqwdRrQgLn/l02sBGkwwWkAEAjV5EZ/vQV0LswAGAYZsLC3DKTBAJ8BzCkRni/uHFyIYcAtoNc6ypL/ANVIohigrKwMxqqqqgxMzKzM6VHeL+6iGQAKzDtAV5XlJv3n5uFLRTHgzZs3YPzz50+GwqJiPitD9Y8Pjy4BB+CNvfP+3wUmIpAhhckhr3X19LodHZ28UQxQU1MDYw0NDQYBAQEeoBOTK7JjP2xf3Pt/bkfB/4KkoDcKMmIL5OXlFerq6hhu3rzJgC8MwMDYxGSfm5vbVn9/f0cgVxAkpqioyFBfX49iAACbTAK+xT3CzgAAAABJRU5ErkJggg==" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/ZdSOPe1Gj13"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ select is a powerful feature of Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -71,7 +69,7 @@ select is a powerful feature of Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -84,7 +82,7 @@ select is a powerful feature of Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">c1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
<span class="nx">c2</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -100,7 +98,7 @@ executing in concurrent goroutines.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">1</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="nx">c1</span> <span class="o"><-</span> <span class="s">"one"</span>
|
||||
<span class="p">}()</span>
|
||||
@ -121,7 +119,7 @@ simultaneously, printing each one as it arrives.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">2</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">2</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">select</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">msg1</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">c1</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"received"</span><span class="p">,</span> <span class="nx">msg1</span><span class="p">)</span>
|
||||
@ -147,7 +145,7 @@ expected.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">time</span> go run <span class="k">select</span>.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">time</span> go run <span class="k">select</span>.go
|
||||
<span class="go">received one</span>
|
||||
<span class="go">received two</span>
|
||||
</pre></div>
|
||||
@ -164,7 +162,7 @@ concurrently.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="go">real 0m2.245s</span>
|
||||
<div class="highlight"><pre><span class="go">real 0m2.245s</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -181,5 +179,10 @@ concurrently.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/select">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' c1 := make(chan string)\u000A c2 := make(chan string)\u000A');codeLines.push(' go func() {\u000A time.Sleep(1 * time.Second)\u000A c1 \x3C- \"one\"\u000A }()\u000A go func() {\u000A time.Sleep(2 * time.Second)\u000A c2 \x3C- \"two\"\u000A }()\u000A');codeLines.push(' for i := 0; i \x3C 2; i++ {\u000A select {\u000A case msg1 := \x3C-c1:\u000A fmt.Println(\"received\", msg1)\u000A case msg2 := \x3C-c2:\u000A fmt.Println(\"received\", msg2)\u000A }\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/sha1-hashes
generated
31
public/sha1-hashes
generated
@ -37,7 +37,7 @@ compute SHA1 hashes in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -46,10 +46,8 @@ compute SHA1 hashes in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/1oT-5GBUkLr">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/1oT-5GBUkLr"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -63,7 +61,7 @@ compute SHA1 hashes in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"crypto/sha1"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"crypto/sha1"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -76,7 +74,7 @@ compute SHA1 hashes in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">s</span> <span class="o">:=</span> <span class="s">"sha1 this string"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -92,7 +90,7 @@ Here we start with a new hash.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">h</span> <span class="o">:=</span> <span class="nx">sha1</span><span class="p">.</span><span class="nx">New</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">h</span> <span class="o">:=</span> <span class="nx">sha1</span><span class="p">.</span><span class="nx">New</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -106,7 +104,7 @@ use <code>[]byte(s)</code> to coerce it to bytes.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">h</span><span class="p">.</span><span class="nx">Write</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">h</span><span class="p">.</span><span class="nx">Write</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -121,7 +119,7 @@ to an existing byte slice: it usually isn’t needed.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">bs</span> <span class="o">:=</span> <span class="nx">h</span><span class="p">.</span><span class="nx">Sum</span><span class="p">(</span><span class="kc">nil</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">bs</span> <span class="o">:=</span> <span class="nx">h</span><span class="p">.</span><span class="nx">Sum</span><span class="p">(</span><span class="kc">nil</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -136,7 +134,7 @@ a hash results to a hex string.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%x\n"</span><span class="p">,</span> <span class="nx">bs</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -156,7 +154,7 @@ a human-readable hex format.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sha1-hashes.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sha1-hashes.go
|
||||
<span class="go">sha1 this string</span>
|
||||
<span class="go">cf23df2207d99a74fbe169e3eba035e633b65d94</span>
|
||||
</pre></div>
|
||||
@ -173,7 +171,7 @@ import <code>crypto/md5</code> and use <code>md5.New()</code>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -186,7 +184,7 @@ you should carefully research
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -201,5 +199,10 @@ you should carefully research
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/sha1-hashes">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"crypto/sha1\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A s := \"sha1 this string\"\u000A');codeLines.push(' h := sha1.New()\u000A');codeLines.push(' h.Write([]byte(s))\u000A');codeLines.push(' bs := h.Sum(nil)\u000A');codeLines.push(' fmt.Println(s)\u000A fmt.Printf(\"%x\\n\", bs)\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/signals
generated
27
public/signals
generated
@ -37,7 +37,7 @@ Here’s how to handle signals in Go with channels.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -46,10 +46,8 @@ Here’s how to handle signals in Go with channels.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/9koJAW1raI5">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/9koJAW1raI5"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -61,7 +59,7 @@ Here’s how to handle signals in Go with channels.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
<span class="kn">import</span> <span class="s">"os/signal"</span>
|
||||
<span class="kn">import</span> <span class="s">"syscall"</span>
|
||||
@ -76,7 +74,7 @@ Here’s how to handle signals in Go with channels.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -92,7 +90,7 @@ notify us when the program can exit).</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sigs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Signal</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">sigs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Signal</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nx">done</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">bool</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -107,7 +105,7 @@ receive notifications of the specified signals.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">signal</span><span class="p">.</span><span class="nx">Notify</span><span class="p">(</span><span class="nx">sigs</span><span class="p">,</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">SIGINT</span><span class="p">,</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">SIGTERM</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">signal</span><span class="p">.</span><span class="nx">Notify</span><span class="p">(</span><span class="nx">sigs</span><span class="p">,</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">SIGINT</span><span class="p">,</span> <span class="nx">syscall</span><span class="p">.</span><span class="nx">SIGTERM</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -122,7 +120,7 @@ and then notify the program that it can finish.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">sig</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">sigs</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">sig</span><span class="p">)</span>
|
||||
@ -142,7 +140,7 @@ above sending a value on <code>done</code>) and then exit.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"awaiting signal"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"awaiting signal"</span><span class="p">)</span>
|
||||
<span class="o"><-</span><span class="nx">done</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"exiting"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -165,7 +163,7 @@ causing the program to print <code>interrupt</code> and then exit.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run signals.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run signals.go
|
||||
<span class="go">awaiting signal</span>
|
||||
<span class="go">^C</span>
|
||||
<span class="go">interrupt</span>
|
||||
@ -186,5 +184,10 @@ causing the program to print <code>interrupt</code> and then exit.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/signals">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"os\"\u000Aimport \"os/signal\"\u000Aimport \"syscall\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' sigs := make(chan os.Signal, 1)\u000A done := make(chan bool, 1)\u000A');codeLines.push(' signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)\u000A');codeLines.push(' go func() {\u000A sig := \x3C-sigs\u000A fmt.Println()\u000A fmt.Println(sig)\u000A done \x3C- true\u000A }()\u000A');codeLines.push(' fmt.Println(\"awaiting signal\")\u000A \x3C-done\u000A fmt.Println(\"exiting\")\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
8
public/site.css
generated
8
public/site.css
generated
@ -136,11 +136,17 @@ pre, code {
|
||||
font-size: 14px; line-height: 18px;
|
||||
font-family: 'Menlo', 'Monaco', 'Consolas', 'Lucida Console', monospace;
|
||||
}
|
||||
img.run {
|
||||
img.copy, img.run {
|
||||
height: 16px;
|
||||
width: 16px;
|
||||
float: right
|
||||
}
|
||||
img.copy, img.run {
|
||||
cursor: pointer;
|
||||
}
|
||||
img.copy {
|
||||
margin-right: 4px;
|
||||
}
|
||||
|
||||
/* Syntax highlighting */
|
||||
body .hll { background-color: #ffffcc }
|
||||
|
||||
17
public/site.js
generated
Normal file
17
public/site.js
generated
Normal file
File diff suppressed because one or more lines are too long
43
public/slices
generated
43
public/slices
generated
@ -33,7 +33,7 @@ powerful interface to sequences than arrays.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ powerful interface to sequences than arrays.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/Z3_U32sn8RF">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/Z3_U32sn8RF"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ powerful interface to sequences than arrays.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -69,7 +67,7 @@ powerful interface to sequences than arrays.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ the builtin <code>make</code>. Here we make a slice of
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"emp:"</span><span class="p">,</span> <span class="nx">s</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -100,7 +98,7 @@ the builtin <code>make</code>. Here we make a slice of
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="p">=</span> <span class="s">"a"</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="p">=</span> <span class="s">"a"</span>
|
||||
<span class="nx">s</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="p">=</span> <span class="s">"b"</span>
|
||||
<span class="nx">s</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="p">=</span> <span class="s">"c"</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"set:"</span><span class="p">,</span> <span class="nx">s</span><span class="p">)</span>
|
||||
@ -117,7 +115,7 @@ the builtin <code>make</code>. Here we make a slice of
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"len:"</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -135,7 +133,7 @@ Note that we need to accept a return value from
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="p">=</span> <span class="nb">append</span><span class="p">(</span><span class="nx">s</span><span class="p">,</span> <span class="s">"d"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="p">=</span> <span class="nb">append</span><span class="p">(</span><span class="nx">s</span><span class="p">,</span> <span class="s">"d"</span><span class="p">)</span>
|
||||
<span class="nx">s</span> <span class="p">=</span> <span class="nb">append</span><span class="p">(</span><span class="nx">s</span><span class="p">,</span> <span class="s">"e"</span><span class="p">,</span> <span class="s">"f"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"apd:"</span><span class="p">,</span> <span class="nx">s</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -152,7 +150,7 @@ into <code>c</code> from <code>s</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">c</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">string</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="nx">s</span><span class="p">))</span>
|
||||
<span class="nb">copy</span><span class="p">(</span><span class="nx">c</span><span class="p">,</span> <span class="nx">s</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"cpy:"</span><span class="p">,</span> <span class="nx">c</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -169,7 +167,7 @@ of the elements <code>s[2]</code>, <code>s[3]</code>, and <code>s[4]</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="o">:=</span> <span class="nx">s</span><span class="p">[</span><span class="mi">2</span><span class="p">:</span><span class="mi">5</span><span class="p">]</span>
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="o">:=</span> <span class="nx">s</span><span class="p">[</span><span class="mi">2</span><span class="p">:</span><span class="mi">5</span><span class="p">]</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"sl1:"</span><span class="p">,</span> <span class="nx">l</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -183,7 +181,7 @@ of the elements <code>s[2]</code>, <code>s[3]</code>, and <code>s[4]</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="p">=</span> <span class="nx">s</span><span class="p">[:</span><span class="mi">5</span><span class="p">]</span>
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="p">=</span> <span class="nx">s</span><span class="p">[:</span><span class="mi">5</span><span class="p">]</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"sl2:"</span><span class="p">,</span> <span class="nx">l</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -197,7 +195,7 @@ of the elements <code>s[2]</code>, <code>s[3]</code>, and <code>s[4]</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="p">=</span> <span class="nx">s</span><span class="p">[</span><span class="mi">2</span><span class="p">:]</span>
|
||||
<div class="highlight"><pre> <span class="nx">l</span> <span class="p">=</span> <span class="nx">s</span><span class="p">[</span><span class="mi">2</span><span class="p">:]</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"sl3:"</span><span class="p">,</span> <span class="nx">l</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -212,7 +210,7 @@ in a single line as well.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"g"</span><span class="p">,</span> <span class="s">"h"</span><span class="p">,</span> <span class="s">"i"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"g"</span><span class="p">,</span> <span class="s">"h"</span><span class="p">,</span> <span class="s">"i"</span><span class="p">}</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"dcl:"</span><span class="p">,</span> <span class="nx">t</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -228,7 +226,7 @@ vary, unlike with multi-dimensional arrays.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">twoD</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([][]</span><span class="kt">int</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">twoD</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">([][]</span><span class="kt">int</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="p"><</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">innerLen</span> <span class="o">:=</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nx">twoD</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="p">=</span> <span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span> <span class="nx">innerLen</span><span class="p">)</span>
|
||||
@ -255,7 +253,7 @@ they are rendered similarly by <code>fmt.Println</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run slices.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run slices.go
|
||||
<span class="go">emp: [ ]</span>
|
||||
<span class="go">set: [a b c]</span>
|
||||
<span class="go">get: c</span>
|
||||
@ -281,7 +279,7 @@ implementation of slices in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -293,7 +291,7 @@ Go’s other key builtin data structure: maps.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -308,5 +306,10 @@ Go’s other key builtin data structure: maps.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/slices">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' s := make([]string, 3)\u000A fmt.Println(\"emp:\", s)\u000A');codeLines.push(' s[0] = \"a\"\u000A s[1] = \"b\"\u000A s[2] = \"c\"\u000A fmt.Println(\"set:\", s)\u000A fmt.Println(\"get:\", s[2])\u000A');codeLines.push(' fmt.Println(\"len:\", len(s))\u000A');codeLines.push(' s = append(s, \"d\")\u000A s = append(s, \"e\", \"f\")\u000A fmt.Println(\"apd:\", s)\u000A');codeLines.push(' c := make([]string, len(s))\u000A copy(c, s)\u000A fmt.Println(\"cpy:\", c)\u000A');codeLines.push(' l := s[2:5]\u000A fmt.Println(\"sl1:\", l)\u000A');codeLines.push(' l = s[:5]\u000A fmt.Println(\"sl2:\", l)\u000A');codeLines.push(' l = s[2:]\u000A fmt.Println(\"sl3:\", l)\u000A');codeLines.push(' t := []string{\"g\", \"h\", \"i\"}\u000A fmt.Println(\"dcl:\", t)\u000A');codeLines.push(' twoD := make([][]int, 3)\u000A for i := 0; i \x3C 3; i++ {\u000A innerLen := i + 1\u000A twoD[i] = make([]int, innerLen)\u000A for j := 0; j \x3C innerLen; j++ {\u000A twoD[i][j] = i + j\u000A }\u000A }\u000A fmt.Println(\"2d: \", twoD)\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/sorting
generated
25
public/sorting
generated
@ -34,7 +34,7 @@ builtins first.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ builtins first.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/e6hp3Rn-oH6">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/e6hp3Rn-oH6"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ builtins first.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"sort"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -71,7 +69,7 @@ builtins first.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -87,7 +85,7 @@ return a new one.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">strs</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"c"</span><span class="p">,</span> <span class="s">"a"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">strs</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"c"</span><span class="p">,</span> <span class="s">"a"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">}</span>
|
||||
<span class="nx">sort</span><span class="p">.</span><span class="nx">Strings</span><span class="p">(</span><span class="nx">strs</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Strings:"</span><span class="p">,</span> <span class="nx">strs</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -102,7 +100,7 @@ return a new one.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">ints</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">7</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">ints</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">7</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<span class="nx">sort</span><span class="p">.</span><span class="nx">Ints</span><span class="p">(</span><span class="nx">ints</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Ints: "</span><span class="p">,</span> <span class="nx">ints</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -118,7 +116,7 @@ already in sorted order.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">sort</span><span class="p">.</span><span class="nx">IntsAreSorted</span><span class="p">(</span><span class="nx">ints</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">sort</span><span class="p">.</span><span class="nx">IntsAreSorted</span><span class="p">(</span><span class="nx">ints</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Sorted: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -138,7 +136,7 @@ slices and <code>true</code> as the result of our <code>AreSorted</code> test.</
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sorting.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sorting.go
|
||||
<span class="go">Strings: [a b c]</span>
|
||||
<span class="go">Ints: [2 4 7]</span>
|
||||
<span class="go">Sorted: true</span>
|
||||
@ -158,5 +156,10 @@ slices and <code>true</code> as the result of our <code>AreSorted</code> test.</
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/sorting">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"sort\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' strs := []string{\"c\", \"a\", \"b\"}\u000A sort.Strings(strs)\u000A fmt.Println(\"Strings:\", strs)\u000A');codeLines.push(' ints := []int{7, 2, 4}\u000A sort.Ints(ints)\u000A fmt.Println(\"Ints: \", ints)\u000A');codeLines.push(' s := sort.IntsAreSorted(ints)\u000A fmt.Println(\"Sorted: \", s)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/sorting-by-functions
generated
25
public/sorting-by-functions
generated
@ -36,7 +36,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/y3kuCwIFRYK">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/y3kuCwIFRYK"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"sort"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"sort"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -77,7 +75,7 @@ type.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">byLength</span> <span class="p">[]</span><span class="kt">string</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">byLength</span> <span class="p">[]</span><span class="kt">string</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -96,7 +94,7 @@ we use <code>len(s[i])</code> and <code>len(s[j])</code> here.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">s</span> <span class="nx">byLength</span><span class="p">)</span> <span class="nx">Len</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="p">(</span><span class="nx">s</span> <span class="nx">byLength</span><span class="p">)</span> <span class="nx">Len</span><span class="p">()</span> <span class="kt">int</span> <span class="p">{</span>
|
||||
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
<span class="kd">func</span> <span class="p">(</span><span class="nx">s</span> <span class="nx">byLength</span><span class="p">)</span> <span class="nx">Swap</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="nx">j</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
@ -120,7 +118,7 @@ slice.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">fruits</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">"peach"</span><span class="p">,</span> <span class="s">"banana"</span><span class="p">,</span> <span class="s">"kiwi"</span><span class="p">}</span>
|
||||
<span class="nx">sort</span><span class="p">.</span><span class="nx">Sort</span><span class="p">(</span><span class="nx">byLength</span><span class="p">(</span><span class="nx">fruits</span><span class="p">))</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">fruits</span><span class="p">)</span>
|
||||
@ -142,7 +140,7 @@ length, as desired.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sorting-by-functions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run sorting-by-functions.go
|
||||
<span class="go">[kiwi peach banana]</span>
|
||||
</pre></div>
|
||||
|
||||
@ -160,7 +158,7 @@ functions.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -175,5 +173,10 @@ functions.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/sorting-by-functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"sort\"\u000Aimport \"fmt\"\u000A');codeLines.push('type byLength []string\u000A');codeLines.push('func (s byLength) Len() int {\u000A return len(s)\u000A}\u000Afunc (s byLength) Swap(i, j int) {\u000A s[i], s[j] = s[j], s[i]\u000A}\u000Afunc (s byLength) Less(i, j int) bool {\u000A return len(s[i]) \x3C len(s[j])\u000A}\u000A');codeLines.push('func main() {\u000A fruits := []string{\"peach\", \"banana\", \"kiwi\"}\u000A sort.Sort(byLength(fruits))\u000A fmt.Println(fruits)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
35
public/spawning-processes
generated
35
public/spawning-processes
generated
@ -37,7 +37,7 @@ of spawning processes from Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -46,10 +46,8 @@ of spawning processes from Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/6HRWVK5gPYU">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/6HRWVK5gPYU"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -61,7 +59,7 @@ of spawning processes from Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"io/ioutil"</span>
|
||||
<span class="kn">import</span> <span class="s">"os/exec"</span>
|
||||
</pre></div>
|
||||
@ -75,7 +73,7 @@ of spawning processes from Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -91,7 +89,7 @@ to represent this external process.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">dateCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"date"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">dateCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"date"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -107,7 +105,7 @@ and collecting its output. If there were no errors,
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">dateOut</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">dateCmd</span><span class="p">.</span><span class="nx">Output</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">dateOut</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">dateCmd</span><span class="p">.</span><span class="nx">Output</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -127,7 +125,7 @@ where we pipe data to the external process on its
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">grepCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"grep"</span><span class="p">,</span> <span class="s">"hello"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">grepCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"grep"</span><span class="p">,</span> <span class="s">"hello"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -143,7 +141,7 @@ to exit.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">grepIn</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">grepCmd</span><span class="p">.</span><span class="nx">StdinPipe</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">grepIn</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">grepCmd</span><span class="p">.</span><span class="nx">StdinPipe</span><span class="p">()</span>
|
||||
<span class="nx">grepOut</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">grepCmd</span><span class="p">.</span><span class="nx">StdoutPipe</span><span class="p">()</span>
|
||||
<span class="nx">grepCmd</span><span class="p">.</span><span class="nx">Start</span><span class="p">()</span>
|
||||
<span class="nx">grepIn</span><span class="p">.</span><span class="nx">Write</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"hello grep\ngoodbye grep"</span><span class="p">))</span>
|
||||
@ -166,7 +164,7 @@ exactly the same way.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"> grep hello"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"> grep hello"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">grepBytes</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -185,7 +183,7 @@ option:</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">lsCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"bash"</span><span class="p">,</span> <span class="s">"-c"</span><span class="p">,</span> <span class="s">"ls -a -l -h"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">lsCmd</span> <span class="o">:=</span> <span class="nx">exec</span><span class="p">.</span><span class="nx">Command</span><span class="p">(</span><span class="s">"bash"</span><span class="p">,</span> <span class="s">"-c"</span><span class="p">,</span> <span class="s">"ls -a -l -h"</span><span class="p">)</span>
|
||||
<span class="nx">lsOut</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">lsCmd</span><span class="p">.</span><span class="nx">Output</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
@ -210,7 +208,7 @@ as if we had run them directly from the command-line.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run spawning-processes.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run spawning-processes.go
|
||||
<span class="gp">></span> date
|
||||
<span class="go">Wed Oct 10 09:53:11 PDT 2012</span>
|
||||
</pre></div>
|
||||
@ -224,7 +222,7 @@ as if we had run them directly from the command-line.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">></span> grep hello
|
||||
<div class="highlight"><pre><span class="gp">></span> grep hello
|
||||
<span class="go">hello grep</span>
|
||||
</pre></div>
|
||||
|
||||
@ -237,7 +235,7 @@ as if we had run them directly from the command-line.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">></span> ls -a -l -h
|
||||
<div class="highlight"><pre><span class="gp">></span> ls -a -l -h
|
||||
<span class="go">drwxr-xr-x 4 mark 136B Oct 3 16:29 .</span>
|
||||
<span class="go">drwxr-xr-x 91 mark 3.0K Oct 3 12:50 ..</span>
|
||||
<span class="go">-rw-r--r-- 1 mark 1.3K Oct 3 16:28 spawning-processes.go</span>
|
||||
@ -257,5 +255,10 @@ as if we had run them directly from the command-line.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/spawning-processes">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"io/ioutil\"\u000Aimport \"os/exec\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' dateCmd := exec.Command(\"date\")\u000A');codeLines.push(' dateOut, err := dateCmd.Output()\u000A if err != nil {\u000A panic(err)\u000A }\u000A fmt.Println(\"\x3E date\")\u000A fmt.Println(string(dateOut))\u000A');codeLines.push(' grepCmd := exec.Command(\"grep\", \"hello\")\u000A');codeLines.push(' grepIn, _ := grepCmd.StdinPipe()\u000A grepOut, _ := grepCmd.StdoutPipe()\u000A grepCmd.Start()\u000A grepIn.Write([]byte(\"hello grep\\ngoodbye grep\"))\u000A grepIn.Close()\u000A grepBytes, _ := ioutil.ReadAll(grepOut)\u000A grepCmd.Wait()\u000A');codeLines.push(' fmt.Println(\"\x3E grep hello\")\u000A fmt.Println(string(grepBytes))\u000A');codeLines.push(' lsCmd := exec.Command(\"bash\", \"-c\", \"ls -a -l -h\")\u000A lsOut, err := lsCmd.Output()\u000A if err != nil {\u000A panic(err)\u000A }\u000A fmt.Println(\"\x3E ls -a -l -h\")\u000A fmt.Println(string(lsOut))\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
37
public/stateful-goroutines
generated
37
public/stateful-goroutines
generated
@ -39,7 +39,7 @@ by exactly 1 goroutine.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -48,10 +48,8 @@ by exactly 1 goroutine.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/saQTLpdIgp2">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/saQTLpdIgp2"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -63,7 +61,7 @@ by exactly 1 goroutine.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"math/rand"</span>
|
||||
<span class="s">"sync/atomic"</span>
|
||||
@ -88,7 +86,7 @@ goroutine to respond.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">readOp</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">readOp</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">key</span> <span class="kt">int</span>
|
||||
<span class="nx">resp</span> <span class="kd">chan</span> <span class="kt">int</span>
|
||||
<span class="p">}</span>
|
||||
@ -108,7 +106,7 @@ goroutine to respond.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -121,7 +119,7 @@ goroutine to respond.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">readOps</span> <span class="kt">uint64</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">readOps</span> <span class="kt">uint64</span>
|
||||
<span class="kd">var</span> <span class="nx">writeOps</span> <span class="kt">uint64</span>
|
||||
</pre></div>
|
||||
|
||||
@ -137,7 +135,7 @@ respectively.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">reads</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">readOp</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">reads</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">readOp</span><span class="p">)</span>
|
||||
<span class="nx">writes</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="nx">writeOp</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -159,7 +157,7 @@ value in the case of <code>reads</code>).</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="kd">var</span> <span class="nx">state</span> <span class="p">=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">map</span><span class="p">[</span><span class="kt">int</span><span class="p">]</span><span class="kt">int</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
<span class="k">select</span> <span class="p">{</span>
|
||||
@ -187,7 +185,7 @@ result over the provided <code>resp</code> channel.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">r</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">r</span> <span class="p"><</span> <span class="mi">100</span><span class="p">;</span> <span class="nx">r</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">r</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">r</span> <span class="p"><</span> <span class="mi">100</span><span class="p">;</span> <span class="nx">r</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
<span class="nx">read</span> <span class="o">:=</span> <span class="nx">readOp</span><span class="p">{</span>
|
||||
@ -213,7 +211,7 @@ approach.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">w</span> <span class="p"><</span> <span class="mi">10</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">w</span> <span class="p"><</span> <span class="mi">10</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="p">{</span>
|
||||
<span class="nx">write</span> <span class="o">:=</span> <span class="nx">writeOp</span><span class="p">{</span>
|
||||
@ -239,7 +237,7 @@ approach.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -252,7 +250,7 @@ approach.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">readOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">readOps</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">readOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">readOps</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"readOps:"</span><span class="p">,</span> <span class="nx">readOpsFinal</span><span class="p">)</span>
|
||||
<span class="nx">writeOpsFinal</span> <span class="o">:=</span> <span class="nx">atomic</span><span class="p">.</span><span class="nx">LoadUint64</span><span class="p">(</span><span class="o">&</span><span class="nx">writeOps</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"writeOps:"</span><span class="p">,</span> <span class="nx">writeOpsFinal</span><span class="p">)</span>
|
||||
@ -275,7 +273,7 @@ total operations.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run stateful-goroutines.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run stateful-goroutines.go
|
||||
<span class="go">readOps: 71708</span>
|
||||
<span class="go">writeOps: 7177</span>
|
||||
</pre></div>
|
||||
@ -297,7 +295,7 @@ program.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -312,5 +310,10 @@ program.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/stateful-goroutines">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"math/rand\"\u000A \"sync/atomic\"\u000A \"time\"\u000A)\u000A');codeLines.push('type readOp struct {\u000A key int\u000A resp chan int\u000A}\u000Atype writeOp struct {\u000A key int\u000A val int\u000A resp chan bool\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var readOps uint64\u000A var writeOps uint64\u000A');codeLines.push(' reads := make(chan readOp)\u000A writes := make(chan writeOp)\u000A');codeLines.push(' go func() {\u000A var state = make(map[int]int)\u000A for {\u000A select {\u000A case read := \x3C-reads:\u000A read.resp \x3C- state[read.key]\u000A case write := \x3C-writes:\u000A state[write.key] = write.val\u000A write.resp \x3C- true\u000A }\u000A }\u000A }()\u000A');codeLines.push(' for r := 0; r \x3C 100; r++ {\u000A go func() {\u000A for {\u000A read := readOp{\u000A key: rand.Intn(5),\u000A resp: make(chan int)}\u000A reads \x3C- read\u000A \x3C-read.resp\u000A atomic.AddUint64(&readOps, 1)\u000A time.Sleep(time.Millisecond)\u000A }\u000A }()\u000A }\u000A');codeLines.push(' for w := 0; w \x3C 10; w++ {\u000A go func() {\u000A for {\u000A write := writeOp{\u000A key: rand.Intn(5),\u000A val: rand.Intn(100),\u000A resp: make(chan bool)}\u000A writes \x3C- write\u000A \x3C-write.resp\u000A atomic.AddUint64(&writeOps, 1)\u000A time.Sleep(time.Millisecond)\u000A }\u000A }()\u000A }\u000A');codeLines.push(' time.Sleep(time.Second)\u000A');codeLines.push(' readOpsFinal := atomic.LoadUint64(&readOps)\u000A fmt.Println(\"readOps:\", readOpsFinal)\u000A writeOpsFinal := atomic.LoadUint64(&writeOps)\u000A fmt.Println(\"writeOps:\", writeOpsFinal)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
65
public/string-formatting
generated
65
public/string-formatting
generated
@ -34,7 +34,7 @@ common string formatting tasks.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ common string formatting tasks.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/CkBQ3CFpHQ9">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/CkBQ3CFpHQ9"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ common string formatting tasks.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"os"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -71,7 +69,7 @@ common string formatting tasks.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">point</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">point</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">x</span><span class="p">,</span> <span class="nx">y</span> <span class="kt">int</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -85,7 +83,7 @@ common string formatting tasks.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -100,7 +98,7 @@ an instance of our <code>point</code> struct.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">point</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">point</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">}</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%v\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -115,7 +113,7 @@ include the struct’s field names.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%+v\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%+v\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -130,7 +128,7 @@ would produce that value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%#v\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%#v\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -143,7 +141,7 @@ would produce that value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%T\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%T\n"</span><span class="p">,</span> <span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -156,7 +154,7 @@ would produce that value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%t\n"</span><span class="p">,</span> <span class="kc">true</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%t\n"</span><span class="p">,</span> <span class="kc">true</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -170,7 +168,7 @@ Use <code>%d</code> for standard, base-10 formatting.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%d\n"</span><span class="p">,</span> <span class="mi">123</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%d\n"</span><span class="p">,</span> <span class="mi">123</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -183,7 +181,7 @@ Use <code>%d</code> for standard, base-10 formatting.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%b\n"</span><span class="p">,</span> <span class="mi">14</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%b\n"</span><span class="p">,</span> <span class="mi">14</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -197,7 +195,7 @@ given integer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%c\n"</span><span class="p">,</span> <span class="mi">33</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%c\n"</span><span class="p">,</span> <span class="mi">33</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -210,7 +208,7 @@ given integer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%x\n"</span><span class="p">,</span> <span class="mi">456</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%x\n"</span><span class="p">,</span> <span class="mi">456</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -224,7 +222,7 @@ floats. For basic decimal formatting use <code>%f</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%f\n"</span><span class="p">,</span> <span class="mf">78.9</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%f\n"</span><span class="p">,</span> <span class="mf">78.9</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -238,7 +236,7 @@ different versions of) scientific notation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%e\n"</span><span class="p">,</span> <span class="mf">123400000.0</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%e\n"</span><span class="p">,</span> <span class="mf">123400000.0</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%E\n"</span><span class="p">,</span> <span class="mf">123400000.0</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -252,7 +250,7 @@ different versions of) scientific notation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%s\n"</span><span class="p">,</span> <span class="s">"\"string\""</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%s\n"</span><span class="p">,</span> <span class="s">"\"string\""</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -265,7 +263,7 @@ different versions of) scientific notation.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%q\n"</span><span class="p">,</span> <span class="s">"\"string\""</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%q\n"</span><span class="p">,</span> <span class="s">"\"string\""</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -280,7 +278,7 @@ per byte of input.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%x\n"</span><span class="p">,</span> <span class="s">"hex this"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%x\n"</span><span class="p">,</span> <span class="s">"hex this"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -293,7 +291,7 @@ per byte of input.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%p\n"</span><span class="p">,</span> <span class="o">&</span><span class="nx">p</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%p\n"</span><span class="p">,</span> <span class="o">&</span><span class="nx">p</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -311,7 +309,7 @@ spaces.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6d|%6d|\n"</span><span class="p">,</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">345</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6d|%6d|\n"</span><span class="p">,</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">345</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -327,7 +325,7 @@ width.precision syntax.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6.2f|%6.2f|\n"</span><span class="p">,</span> <span class="mf">1.2</span><span class="p">,</span> <span class="mf">3.45</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6.2f|%6.2f|\n"</span><span class="p">,</span> <span class="mf">1.2</span><span class="p">,</span> <span class="mf">3.45</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -340,7 +338,7 @@ width.precision syntax.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%-6.2f|%-6.2f|\n"</span><span class="p">,</span> <span class="mf">1.2</span><span class="p">,</span> <span class="mf">3.45</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%-6.2f|%-6.2f|\n"</span><span class="p">,</span> <span class="mf">1.2</span><span class="p">,</span> <span class="mf">3.45</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -355,7 +353,7 @@ table-like output. For basic right-justified width.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6s|%6s|\n"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%6s|%6s|\n"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -368,7 +366,7 @@ table-like output. For basic right-justified width.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%-6s|%-6s|\n"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"|%-6s|%-6s|\n"</span><span class="p">,</span> <span class="s">"foo"</span><span class="p">,</span> <span class="s">"b"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -383,7 +381,7 @@ and returns a string without printing it anywhere.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Sprintf</span><span class="p">(</span><span class="s">"a %s"</span><span class="p">,</span> <span class="s">"string"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Sprintf</span><span class="p">(</span><span class="s">"a %s"</span><span class="p">,</span> <span class="s">"string"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -398,7 +396,7 @@ and returns a string without printing it anywhere.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stderr</span><span class="p">,</span> <span class="s">"an %s\n"</span><span class="p">,</span> <span class="s">"error"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stderr</span><span class="p">,</span> <span class="s">"an %s\n"</span><span class="p">,</span> <span class="s">"error"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -415,7 +413,7 @@ and returns a string without printing it anywhere.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run string-formatting.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run string-formatting.go
|
||||
<span class="go">{1 2}</span>
|
||||
<span class="go">{x:1 y:2}</span>
|
||||
<span class="go">main.point{x:1, y:2}</span>
|
||||
@ -455,5 +453,10 @@ and returns a string without printing it anywhere.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/string-formatting">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"os\"\u000A');codeLines.push('type point struct {\u000A x, y int\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' p := point{1, 2}\u000A fmt.Printf(\"%v\\n\", p)\u000A');codeLines.push(' fmt.Printf(\"%+v\\n\", p)\u000A');codeLines.push(' fmt.Printf(\"%#v\\n\", p)\u000A');codeLines.push(' fmt.Printf(\"%T\\n\", p)\u000A');codeLines.push(' fmt.Printf(\"%t\\n\", true)\u000A');codeLines.push(' fmt.Printf(\"%d\\n\", 123)\u000A');codeLines.push(' fmt.Printf(\"%b\\n\", 14)\u000A');codeLines.push(' fmt.Printf(\"%c\\n\", 33)\u000A');codeLines.push(' fmt.Printf(\"%x\\n\", 456)\u000A');codeLines.push(' fmt.Printf(\"%f\\n\", 78.9)\u000A');codeLines.push(' fmt.Printf(\"%e\\n\", 123400000.0)\u000A fmt.Printf(\"%E\\n\", 123400000.0)\u000A');codeLines.push(' fmt.Printf(\"%s\\n\", \"\\\"string\\\"\")\u000A');codeLines.push(' fmt.Printf(\"%q\\n\", \"\\\"string\\\"\")\u000A');codeLines.push(' fmt.Printf(\"%x\\n\", \"hex this\")\u000A');codeLines.push(' fmt.Printf(\"%p\\n\", &p)\u000A');codeLines.push(' fmt.Printf(\"|%6d|%6d|\\n\", 12, 345)\u000A');codeLines.push(' fmt.Printf(\"|%6.2f|%6.2f|\\n\", 1.2, 3.45)\u000A');codeLines.push(' fmt.Printf(\"|%-6.2f|%-6.2f|\\n\", 1.2, 3.45)\u000A');codeLines.push(' fmt.Printf(\"|%6s|%6s|\\n\", \"foo\", \"b\")\u000A');codeLines.push(' fmt.Printf(\"|%-6s|%-6s|\\n\", \"foo\", \"b\")\u000A');codeLines.push(' s := fmt.Sprintf(\"a %s\", \"string\")\u000A fmt.Println(s)\u000A');codeLines.push(' fmt.Fprintf(os.Stderr, \"an %s\\n\", \"error\")\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/string-functions
generated
29
public/string-functions
generated
@ -34,7 +34,7 @@ to give you a sense of the package.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ to give you a sense of the package.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/Vn4D3y4_711">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/Vn4D3y4_711"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ to give you a sense of the package.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nx">s</span> <span class="s">"strings"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nx">s</span> <span class="s">"strings"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -73,7 +71,7 @@ it a lot below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">var</span> <span class="nx">p</span> <span class="p">=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span>
|
||||
<div class="highlight"><pre><span class="kd">var</span> <span class="nx">p</span> <span class="p">=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -85,7 +83,7 @@ it a lot below.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -104,7 +102,7 @@ package docs.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="s">"Contains: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">.</span><span class="nx">Contains</span><span class="p">(</span><span class="s">"test"</span><span class="p">,</span> <span class="s">"es"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="s">"Contains: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">.</span><span class="nx">Contains</span><span class="p">(</span><span class="s">"test"</span><span class="p">,</span> <span class="s">"es"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="s">"Count: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">.</span><span class="nx">Count</span><span class="p">(</span><span class="s">"test"</span><span class="p">,</span> <span class="s">"t"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="s">"HasPrefix: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">.</span><span class="nx">HasPrefix</span><span class="p">(</span><span class="s">"test"</span><span class="p">,</span> <span class="s">"te"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="s">"HasSuffix: "</span><span class="p">,</span> <span class="nx">s</span><span class="p">.</span><span class="nx">HasSuffix</span><span class="p">(</span><span class="s">"test"</span><span class="p">,</span> <span class="s">"st"</span><span class="p">))</span>
|
||||
@ -131,7 +129,7 @@ bytes and getting a byte by index.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="s">"Len: "</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="s">"hello"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="s">"Len: "</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="s">"hello"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="s">"Char:"</span><span class="p">,</span> <span class="s">"hello"</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -151,7 +149,7 @@ for more information.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -165,7 +163,7 @@ for more information.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run string-functions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run string-functions.go
|
||||
<span class="go">Contains: true</span>
|
||||
<span class="go">Count: 2</span>
|
||||
<span class="go">HasPrefix: true</span>
|
||||
@ -189,7 +187,7 @@ for more information.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="go">Len: 5</span>
|
||||
<div class="highlight"><pre><span class="go">Len: 5</span>
|
||||
<span class="go">Char: 101</span>
|
||||
</pre></div>
|
||||
|
||||
@ -207,5 +205,10 @@ for more information.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/string-functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import s \"strings\"\u000Aimport \"fmt\"\u000A');codeLines.push('var p = fmt.Println\u000A');codeLines.push('func main() {\u000A');codeLines.push(' p(\"Contains: \", s.Contains(\"test\", \"es\"))\u000A p(\"Count: \", s.Count(\"test\", \"t\"))\u000A p(\"HasPrefix: \", s.HasPrefix(\"test\", \"te\"))\u000A p(\"HasSuffix: \", s.HasSuffix(\"test\", \"st\"))\u000A p(\"Index: \", s.Index(\"test\", \"e\"))\u000A p(\"Join: \", s.Join([]string{\"a\", \"b\"}, \"-\"))\u000A p(\"Repeat: \", s.Repeat(\"a\", 5))\u000A p(\"Replace: \", s.Replace(\"foo\", \"o\", \"0\", -1))\u000A p(\"Replace: \", s.Replace(\"foo\", \"o\", \"0\", 1))\u000A p(\"Split: \", s.Split(\"a-b-c-d-e\", \"-\"))\u000A p(\"ToLower: \", s.ToLower(\"TEST\"))\u000A p(\"ToUpper: \", s.ToUpper(\"test\"))\u000A p()\u000A');codeLines.push(' p(\"Len: \", len(\"hello\"))\u000A p(\"Char:\", \"hello\"[1])\u000A}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
41
public/structs
generated
41
public/structs
generated
@ -34,7 +34,7 @@ records.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ records.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/00Yiw6xuICq">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/00Yiw6xuICq"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ records.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -71,7 +69,7 @@ records.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">person</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">person</span> <span class="kd">struct</span> <span class="p">{</span>
|
||||
<span class="nx">name</span> <span class="kt">string</span>
|
||||
<span class="nx">age</span> <span class="kt">int</span>
|
||||
<span class="p">}</span>
|
||||
@ -87,7 +85,7 @@ records.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">NewPerson</span><span class="p">(</span><span class="nx">name</span> <span class="kt">string</span><span class="p">)</span> <span class="o">*</span><span class="nx">person</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">NewPerson</span><span class="p">(</span><span class="nx">name</span> <span class="kt">string</span><span class="p">)</span> <span class="o">*</span><span class="nx">person</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -101,7 +99,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="nx">name</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span> <span class="o">:=</span> <span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="nx">name</span><span class="p">}</span>
|
||||
<span class="nx">p</span><span class="p">.</span><span class="nx">age</span> <span class="p">=</span> <span class="mi">42</span>
|
||||
<span class="k">return</span> <span class="o">&</span><span class="nx">p</span>
|
||||
<span class="p">}</span>
|
||||
@ -116,7 +114,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -129,7 +127,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="s">"Bob"</span><span class="p">,</span> <span class="mi">20</span><span class="p">})</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="s">"Bob"</span><span class="p">,</span> <span class="mi">20</span><span class="p">})</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -142,7 +140,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Alice"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">30</span><span class="p">})</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Alice"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">30</span><span class="p">})</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -155,7 +153,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Fred"</span><span class="p">})</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Fred"</span><span class="p">})</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -168,7 +166,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="o">&</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Ann"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">40</span><span class="p">})</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="o">&</span><span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Ann"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">40</span><span class="p">})</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -181,7 +179,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">NewPerson</span><span class="p">(</span><span class="s">"Jon"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">NewPerson</span><span class="p">(</span><span class="s">"Jon"</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -194,7 +192,7 @@ as a local variable will survive the scope of the function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Sean"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">50</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="nx">person</span><span class="p">{</span><span class="nx">name</span><span class="p">:</span> <span class="s">"Sean"</span><span class="p">,</span> <span class="nx">age</span><span class="p">:</span> <span class="mi">50</span><span class="p">}</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">.</span><span class="nx">name</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -209,7 +207,7 @@ pointers are automatically dereferenced.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sp</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">s</span>
|
||||
<div class="highlight"><pre> <span class="nx">sp</span> <span class="o">:=</span> <span class="o">&</span><span class="nx">s</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">sp</span><span class="p">.</span><span class="nx">age</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -223,7 +221,7 @@ pointers are automatically dereferenced.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sp</span><span class="p">.</span><span class="nx">age</span> <span class="p">=</span> <span class="mi">51</span>
|
||||
<div class="highlight"><pre> <span class="nx">sp</span><span class="p">.</span><span class="nx">age</span> <span class="p">=</span> <span class="mi">51</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">sp</span><span class="p">.</span><span class="nx">age</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -241,7 +239,7 @@ pointers are automatically dereferenced.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run structs.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run structs.go
|
||||
<span class="go">{Bob 20}</span>
|
||||
<span class="go">{Alice 30}</span>
|
||||
<span class="go">{Fred 0}</span>
|
||||
@ -266,5 +264,10 @@ pointers are automatically dereferenced.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/structs">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('type person struct {\u000A name string\u000A age int\u000A}\u000A');codeLines.push('func NewPerson(name string) *person {\u000A');codeLines.push(' p := person{name: name}\u000A p.age = 42\u000A return &p\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' fmt.Println(person{\"Bob\", 20})\u000A');codeLines.push(' fmt.Println(person{name: \"Alice\", age: 30})\u000A');codeLines.push(' fmt.Println(person{name: \"Fred\"})\u000A');codeLines.push(' fmt.Println(&person{name: \"Ann\", age: 40})\u000A');codeLines.push(' fmt.Println(NewPerson(\"Jon\"))\u000A');codeLines.push(' s := person{name: \"Sean\", age: 50}\u000A fmt.Println(s.name)\u000A');codeLines.push(' sp := &s\u000A fmt.Println(sp.age)\u000A');codeLines.push(' sp.age = 51\u000A fmt.Println(sp.age)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/switch
generated
27
public/switch
generated
@ -33,7 +33,7 @@ branches.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ branches.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/TJ4Az0KuLfL">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/TJ4Az0KuLfL"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ branches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -70,7 +68,7 @@ branches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -83,7 +81,7 @@ branches.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">2</span>
|
||||
<div class="highlight"><pre> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">2</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="s">"Write "</span><span class="p">,</span> <span class="nx">i</span><span class="p">,</span> <span class="s">" as "</span><span class="p">)</span>
|
||||
<span class="k">switch</span> <span class="nx">i</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="mi">1</span><span class="p">:</span>
|
||||
@ -107,7 +105,7 @@ in the same <code>case</code> statement. We use the optional
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">switch</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">().</span><span class="nx">Weekday</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">switch</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">().</span><span class="nx">Weekday</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Saturday</span><span class="p">,</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Sunday</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"It's the weekend"</span><span class="p">)</span>
|
||||
<span class="k">default</span><span class="p">:</span>
|
||||
@ -127,7 +125,7 @@ to express if/else logic. Here we also show how the
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<span class="k">switch</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">t</span><span class="p">.</span><span class="nx">Hour</span><span class="p">()</span> <span class="p"><</span> <span class="mi">12</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"It's before noon"</span><span class="p">)</span>
|
||||
@ -149,7 +147,7 @@ type corresponding to its clause.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">whatAmI</span> <span class="o">:=</span> <span class="kd">func</span><span class="p">(</span><span class="nx">i</span> <span class="kd">interface</span><span class="p">{})</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="nx">whatAmI</span> <span class="o">:=</span> <span class="kd">func</span><span class="p">(</span><span class="nx">i</span> <span class="kd">interface</span><span class="p">{})</span> <span class="p">{</span>
|
||||
<span class="k">switch</span> <span class="nx">t</span> <span class="o">:=</span> <span class="nx">i</span><span class="p">.(</span><span class="kd">type</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="kt">bool</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"I'm a bool"</span><span class="p">)</span>
|
||||
@ -178,7 +176,7 @@ type corresponding to its clause.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run switch.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run switch.go
|
||||
<span class="go">Write 2 as two</span>
|
||||
<span class="go">It's a weekday</span>
|
||||
<span class="go">It's after noon</span>
|
||||
@ -201,5 +199,10 @@ type corresponding to its clause.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/switch">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' i := 2\u000A fmt.Print(\"Write \", i, \" as \")\u000A switch i {\u000A case 1:\u000A fmt.Println(\"one\")\u000A case 2:\u000A fmt.Println(\"two\")\u000A case 3:\u000A fmt.Println(\"three\")\u000A }\u000A');codeLines.push(' switch time.Now().Weekday() {\u000A case time.Saturday, time.Sunday:\u000A fmt.Println(\"It\'s the weekend\")\u000A default:\u000A fmt.Println(\"It\'s a weekday\")\u000A }\u000A');codeLines.push(' t := time.Now()\u000A switch {\u000A case t.Hour() \x3C 12:\u000A fmt.Println(\"It\'s before noon\")\u000A default:\u000A fmt.Println(\"It\'s after noon\")\u000A }\u000A');codeLines.push(' whatAmI := func(i interface{}) {\u000A switch t := i.(type) {\u000A case bool:\u000A fmt.Println(\"I\'m a bool\")\u000A case int:\u000A fmt.Println(\"I\'m an int\")\u000A default:\u000A fmt.Printf(\"Don\'t know type %T\\n\", t)\u000A }\u000A }\u000A whatAmI(true)\u000A whatAmI(1)\u000A whatAmI(\"hey\")\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
35
public/temporary-files-and-directories
generated
35
public/temporary-files-and-directories
generated
@ -36,7 +36,7 @@ time.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ time.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/pxE20wGTFjv">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/pxE20wGTFjv"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ time.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"io/ioutil"</span>
|
||||
<span class="s">"os"</span>
|
||||
@ -77,7 +75,7 @@ time.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">e</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -93,7 +91,7 @@ time.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -110,7 +108,7 @@ create the file in the default location for our OS.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">TempFile</span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="s">"sample"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">TempFile</span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="s">"sample"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -129,7 +127,7 @@ calls will always create different file names.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Temp file name:"</span><span class="p">,</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Name</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Temp file name:"</span><span class="p">,</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Name</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -145,7 +143,7 @@ explicitly.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Remove</span><span class="p">(</span><span class="nx">f</span><span class="p">.</span><span class="nx">Name</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Remove</span><span class="p">(</span><span class="nx">f</span><span class="p">.</span><span class="nx">Name</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -158,7 +156,7 @@ explicitly.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Write</span><span class="p">([]</span><span class="kt">byte</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">})</span>
|
||||
<div class="highlight"><pre> <span class="nx">_</span><span class="p">,</span> <span class="nx">err</span> <span class="p">=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Write</span><span class="p">([]</span><span class="kt">byte</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">})</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -176,7 +174,7 @@ rather than an open file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">dname</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">TempDir</span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="s">"sampledir"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">dname</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">TempDir</span><span class="p">(</span><span class="s">""</span><span class="p">,</span> <span class="s">"sampledir"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Temp dir name:"</span><span class="p">,</span> <span class="nx">dname</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -189,7 +187,7 @@ rather than an open file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">RemoveAll</span><span class="p">(</span><span class="nx">dname</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">os</span><span class="p">.</span><span class="nx">RemoveAll</span><span class="p">(</span><span class="nx">dname</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -203,7 +201,7 @@ prefixing them with our temporary directory.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fname</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="nx">dname</span><span class="p">,</span> <span class="s">"file1"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fname</span> <span class="o">:=</span> <span class="nx">filepath</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="nx">dname</span><span class="p">,</span> <span class="s">"file1"</span><span class="p">)</span>
|
||||
<span class="nx">err</span> <span class="p">=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">WriteFile</span><span class="p">(</span><span class="nx">fname</span><span class="p">,</span> <span class="p">[]</span><span class="kt">byte</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">},</span> <span class="mo">0666</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -222,7 +220,7 @@ prefixing them with our temporary directory.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run temporary-files-and-directories.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run temporary-files-and-directories.go
|
||||
<span class="go">Temp file name: /tmp/sample610887201</span>
|
||||
<span class="go">Temp dir name: /tmp/sampledir898854668</span>
|
||||
</pre></div>
|
||||
@ -241,5 +239,10 @@ prefixing them with our temporary directory.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/temporary-files-and-directories">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"io/ioutil\"\u000A \"os\"\u000A \"path/filepath\"\u000A)\u000A');codeLines.push('func check(e error) {\u000A if e != nil {\u000A panic(e)\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' f, err := ioutil.TempFile(\"\", \"sample\")\u000A check(err)\u000A');codeLines.push(' fmt.Println(\"Temp file name:\", f.Name())\u000A');codeLines.push(' defer os.Remove(f.Name())\u000A');codeLines.push(' _, err = f.Write([]byte{1, 2, 3, 4})\u000A check(err)\u000A');codeLines.push(' dname, err := ioutil.TempDir(\"\", \"sampledir\")\u000A fmt.Println(\"Temp dir name:\", dname)\u000A');codeLines.push(' defer os.RemoveAll(dname)\u000A');codeLines.push(' fname := filepath.Join(dname, \"file1\")\u000A err = ioutil.WriteFile(fname, []byte{1, 2}, 0666)\u000A check(err)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
23
public/tickers
generated
23
public/tickers
generated
@ -36,7 +36,7 @@ periodically until we stop it.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ periodically until we stop it.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/Rgc_UDvHv6a">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/Rgc_UDvHv6a"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ periodically until we stop it.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -73,7 +71,7 @@ periodically until we stop it.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -89,7 +87,7 @@ the values as they arrive every 500ms.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">ticker</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTicker</span><span class="p">(</span><span class="mi">500</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">ticker</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTicker</span><span class="p">(</span><span class="mi">500</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">t</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">ticker</span><span class="p">.</span><span class="nx">C</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Tick at"</span><span class="p">,</span> <span class="nx">t</span><span class="p">)</span>
|
||||
@ -109,7 +107,7 @@ channel. We’ll stop ours after 1600ms.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">1600</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">1600</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
|
||||
<span class="nx">ticker</span><span class="p">.</span><span class="nx">Stop</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Ticker stopped"</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -130,7 +128,7 @@ before we stop it.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run tickers.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run tickers.go
|
||||
<span class="go">Tick at 2012-09-23 11:29:56.487625 -0700 PDT</span>
|
||||
<span class="go">Tick at 2012-09-23 11:29:56.988063 -0700 PDT</span>
|
||||
<span class="go">Tick at 2012-09-23 11:29:57.488076 -0700 PDT</span>
|
||||
@ -151,5 +149,10 @@ before we stop it.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/tickers">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' ticker := time.NewTicker(500 * time.Millisecond)\u000A go func() {\u000A for t := range ticker.C {\u000A fmt.Println(\"Tick at\", t)\u000A }\u000A }()\u000A');codeLines.push(' time.Sleep(1600 * time.Millisecond)\u000A ticker.Stop()\u000A fmt.Println(\"Ticker stopped\")\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
37
public/time
generated
37
public/time
generated
@ -33,7 +33,7 @@ here are some examples.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ here are some examples.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/PZMCzzaJURJ">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/PZMCzzaJURJ"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ here are some examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -70,7 +68,7 @@ here are some examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">p</span> <span class="o">:=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span>
|
||||
</pre></div>
|
||||
|
||||
@ -84,7 +82,7 @@ here are some examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">now</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">now</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">now</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -100,7 +98,7 @@ with a <code>Location</code>, i.e. time zone.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">then</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Date</span><span class="p">(</span>
|
||||
<div class="highlight"><pre> <span class="nx">then</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Date</span><span class="p">(</span>
|
||||
<span class="mi">2009</span><span class="p">,</span> <span class="mi">11</span><span class="p">,</span> <span class="mi">17</span><span class="p">,</span> <span class="mi">20</span><span class="p">,</span> <span class="mi">34</span><span class="p">,</span> <span class="mi">58</span><span class="p">,</span> <span class="mi">651387237</span><span class="p">,</span> <span class="nx">time</span><span class="p">.</span><span class="nx">UTC</span><span class="p">)</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -116,7 +114,7 @@ value as expected.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Year</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Year</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Month</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Day</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Hour</span><span class="p">())</span>
|
||||
@ -136,7 +134,7 @@ value as expected.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Weekday</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Weekday</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -151,7 +149,7 @@ as the second, respectively.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Before</span><span class="p">(</span><span class="nx">now</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Before</span><span class="p">(</span><span class="nx">now</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="nx">now</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Equal</span><span class="p">(</span><span class="nx">now</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
@ -167,7 +165,7 @@ the interval between two times.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">diff</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">Sub</span><span class="p">(</span><span class="nx">then</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">diff</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">Sub</span><span class="p">(</span><span class="nx">then</span><span class="p">)</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -182,7 +180,7 @@ various units.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">.</span><span class="nx">Hours</span><span class="p">())</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">.</span><span class="nx">Hours</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">.</span><span class="nx">Minutes</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">.</span><span class="nx">Seconds</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">diff</span><span class="p">.</span><span class="nx">Nanoseconds</span><span class="p">())</span>
|
||||
@ -200,7 +198,7 @@ duration.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Add</span><span class="p">(</span><span class="nx">diff</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Add</span><span class="p">(</span><span class="nx">diff</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">then</span><span class="p">.</span><span class="nx">Add</span><span class="p">(</span><span class="o">-</span><span class="nx">diff</span><span class="p">))</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -218,7 +216,7 @@ duration.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run time.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run time.go
|
||||
<span class="go">2012-10-31 15:50:13.793654 +0000 UTC</span>
|
||||
<span class="go">2009-11-17 20:34:58.651387237 +0000 UTC</span>
|
||||
<span class="go">2009</span>
|
||||
@ -253,7 +251,7 @@ the Unix epoch.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -268,5 +266,10 @@ the Unix epoch.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/time">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func main() {\u000A p := fmt.Println\u000A');codeLines.push(' now := time.Now()\u000A p(now)\u000A');codeLines.push(' then := time.Date(\u000A 2009, 11, 17, 20, 34, 58, 651387237, time.UTC)\u000A p(then)\u000A');codeLines.push(' p(then.Year())\u000A p(then.Month())\u000A p(then.Day())\u000A p(then.Hour())\u000A p(then.Minute())\u000A p(then.Second())\u000A p(then.Nanosecond())\u000A p(then.Location())\u000A');codeLines.push(' p(then.Weekday())\u000A');codeLines.push(' p(then.Before(now))\u000A p(then.After(now))\u000A p(then.Equal(now))\u000A');codeLines.push(' diff := now.Sub(then)\u000A p(diff)\u000A');codeLines.push(' p(diff.Hours())\u000A p(diff.Minutes())\u000A p(diff.Seconds())\u000A p(diff.Nanoseconds())\u000A');codeLines.push(' p(then.Add(diff))\u000A p(then.Add(-diff))\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/time-formatting-parsing
generated
29
public/time-formatting-parsing
generated
@ -33,7 +33,7 @@ pattern-based layouts.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ pattern-based layouts.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/nHAisH6amZG">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/nHAisH6amZG"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ pattern-based layouts.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -70,7 +68,7 @@ pattern-based layouts.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">p</span> <span class="o">:=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span>
|
||||
</pre></div>
|
||||
|
||||
@ -86,7 +84,7 @@ constant.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">t</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nx">Format</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">RFC3339</span><span class="p">))</span>
|
||||
</pre></div>
|
||||
|
||||
@ -100,7 +98,7 @@ constant.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">t1</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span>
|
||||
<div class="highlight"><pre> <span class="nx">t1</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">RFC3339</span><span class="p">,</span>
|
||||
<span class="s">"2012-11-01T22:08:41+00:00"</span><span class="p">)</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">t1</span><span class="p">)</span>
|
||||
@ -122,7 +120,7 @@ The example time must be exactly as shown: the year 2006,
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nx">Format</span><span class="p">(</span><span class="s">"3:04PM"</span><span class="p">))</span>
|
||||
<div class="highlight"><pre> <span class="nx">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nx">Format</span><span class="p">(</span><span class="s">"3:04PM"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nx">Format</span><span class="p">(</span><span class="s">"Mon Jan _2 15:04:05 2006"</span><span class="p">))</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nx">Format</span><span class="p">(</span><span class="s">"2006-01-02T15:04:05.999999-07:00"</span><span class="p">))</span>
|
||||
<span class="nx">form</span> <span class="o">:=</span> <span class="s">"3 04 PM"</span>
|
||||
@ -142,7 +140,7 @@ components of the time value.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%d-%02d-%02dT%02d:%02d:%02d-00:00\n"</span><span class="p">,</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"%d-%02d-%02dT%02d:%02d:%02d-00:00\n"</span><span class="p">,</span>
|
||||
<span class="nx">t</span><span class="p">.</span><span class="nx">Year</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nx">Month</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nx">Day</span><span class="p">(),</span>
|
||||
<span class="nx">t</span><span class="p">.</span><span class="nx">Hour</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nx">Minute</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nx">Second</span><span class="p">())</span>
|
||||
</pre></div>
|
||||
@ -158,7 +156,7 @@ explaining the parsing problem.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">ansic</span> <span class="o">:=</span> <span class="s">"Mon Jan _2 15:04:05 2006"</span>
|
||||
<div class="highlight"><pre> <span class="nx">ansic</span> <span class="o">:=</span> <span class="s">"Mon Jan _2 15:04:05 2006"</span>
|
||||
<span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="p">=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span><span class="nx">ansic</span><span class="p">,</span> <span class="s">"8:41PM"</span><span class="p">)</span>
|
||||
<span class="nx">p</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -177,7 +175,7 @@ explaining the parsing problem.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run time-formatting-parsing.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run time-formatting-parsing.go
|
||||
<span class="go">2014-04-15T18:00:15-07:00</span>
|
||||
<span class="go">2012-11-01 22:08:41 +0000 +0000</span>
|
||||
<span class="go">6:00PM</span>
|
||||
@ -202,5 +200,10 @@ explaining the parsing problem.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/time-formatting-parsing">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func main() {\u000A p := fmt.Println\u000A');codeLines.push(' t := time.Now()\u000A p(t.Format(time.RFC3339))\u000A');codeLines.push(' t1, e := time.Parse(\u000A time.RFC3339,\u000A \"2012-11-01T22:08:41+00:00\")\u000A p(t1)\u000A');codeLines.push(' p(t.Format(\"3:04PM\"))\u000A p(t.Format(\"Mon Jan _2 15:04:05 2006\"))\u000A p(t.Format(\"2006-01-02T15:04:05.999999-07:00\"))\u000A form := \"3 04 PM\"\u000A t2, e := time.Parse(form, \"8 41 PM\")\u000A p(t2)\u000A');codeLines.push(' fmt.Printf(\"%d-%02d-%02dT%02d:%02d:%02d-00:00\\n\",\u000A t.Year(), t.Month(), t.Day(),\u000A t.Hour(), t.Minute(), t.Second())\u000A');codeLines.push(' ansic := \"Mon Jan _2 15:04:05 2006\"\u000A _, e = time.Parse(ansic, \"8:41PM\")\u000A p(e)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/timeouts
generated
27
public/timeouts
generated
@ -35,7 +35,7 @@ elegant thanks to channels and <code>select</code>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ elegant thanks to channels and <code>select</code>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/MgcfA-xpJO9">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/MgcfA-xpJO9"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ elegant thanks to channels and <code>select</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -72,7 +70,7 @@ elegant thanks to channels and <code>select</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -87,7 +85,7 @@ after 2s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">c1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="nx">c1</span> <span class="o"><-</span> <span class="s">"result 1"</span>
|
||||
@ -109,7 +107,7 @@ if the operation takes more than the allowed 1s.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
|
||||
<span class="k">case</span> <span class="nx">res</span> <span class="o">:=</span> <span class="o"><-</span><span class="nx">c1</span><span class="p">:</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">)</span>
|
||||
<span class="k">case</span> <span class="o"><-</span><span class="nx">time</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="mi">1</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">):</span>
|
||||
@ -128,7 +126,7 @@ from <code>c2</code> will succeed and we’ll print the result.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">c2</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">c2</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="nx">c2</span> <span class="o"><-</span> <span class="s">"result 2"</span>
|
||||
@ -157,7 +155,7 @@ out and the second succeeding.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run timeouts.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run timeouts.go
|
||||
<span class="go">timeout 1</span>
|
||||
<span class="go">result 2</span>
|
||||
</pre></div>
|
||||
@ -176,7 +174,7 @@ examples of this next: timers and tickers.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -191,5 +189,10 @@ examples of this next: timers and tickers.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/timeouts">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' c1 := make(chan string, 1)\u000A go func() {\u000A time.Sleep(2 * time.Second)\u000A c1 \x3C- \"result 1\"\u000A }()\u000A');codeLines.push(' select {\u000A case res := \x3C-c1:\u000A fmt.Println(res)\u000A case \x3C-time.After(1 * time.Second):\u000A fmt.Println(\"timeout 1\")\u000A }\u000A');codeLines.push(' c2 := make(chan string, 1)\u000A go func() {\u000A time.Sleep(2 * time.Second)\u000A c2 \x3C- \"result 2\"\u000A }()\u000A select {\u000A case res := \x3C-c2:\u000A fmt.Println(res)\u000A case \x3C-time.After(3 * time.Second):\u000A fmt.Println(\"timeout 2\")\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/timers
generated
25
public/timers
generated
@ -36,7 +36,7 @@ at <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -45,10 +45,8 @@ at <a href="tickers">tickers</a>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/pybl9hRvJq2">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/pybl9hRvJq2"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -60,7 +58,7 @@ at <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"time"</span>
|
||||
<span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -73,7 +71,7 @@ at <a href="tickers">tickers</a>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -89,7 +87,7 @@ time. This timer will wait 2 seconds.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">timer1</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">timer1</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -104,7 +102,7 @@ expired.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">timer1</span><span class="p">.</span><span class="nx">C</span>
|
||||
<div class="highlight"><pre> <span class="o"><-</span><span class="nx">timer1</span><span class="p">.</span><span class="nx">C</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Timer 1 expired"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -121,7 +119,7 @@ Here’s an example of that.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">timer2</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">timer2</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
|
||||
<span class="o"><-</span><span class="nx">timer2</span><span class="p">.</span><span class="nx">C</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Timer 2 expired"</span><span class="p">)</span>
|
||||
@ -149,7 +147,7 @@ a chance to expire.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run timers.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run timers.go
|
||||
<span class="go">Timer 1 expired</span>
|
||||
<span class="go">Timer 2 stopped</span>
|
||||
</pre></div>
|
||||
@ -168,5 +166,10 @@ a chance to expire.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/timers">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"time\"\u000Aimport \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' timer1 := time.NewTimer(2 * time.Second)\u000A');codeLines.push(' \x3C-timer1.C\u000A fmt.Println(\"Timer 1 expired\")\u000A');codeLines.push(' timer2 := time.NewTimer(time.Second)\u000A go func() {\u000A \x3C-timer2.C\u000A fmt.Println(\"Timer 2 expired\")\u000A }()\u000A stop2 := timer2.Stop()\u000A if stop2 {\u000A fmt.Println(\"Timer 2 stopped\")\u000A }\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
33
public/url-parsing
generated
33
public/url-parsing
generated
@ -33,7 +33,7 @@ Here’s how to parse URLs in Go.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ Here’s how to parse URLs in Go.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/AL79Lv-9CWo">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/AL79Lv-9CWo"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ Here’s how to parse URLs in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"net"</span>
|
||||
<span class="kn">import</span> <span class="s">"net/url"</span>
|
||||
</pre></div>
|
||||
@ -71,7 +69,7 @@ Here’s how to parse URLs in Go.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -86,7 +84,7 @@ query params, and query fragment.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="s">"postgres://user:pass@host.com:5432/path?k=v#f"</span>
|
||||
<div class="highlight"><pre> <span class="nx">s</span> <span class="o">:=</span> <span class="s">"postgres://user:pass@host.com:5432/path?k=v#f"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -99,7 +97,7 @@ query params, and query fragment.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">u</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">url</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">u</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">url</span><span class="p">.</span><span class="nx">Parse</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -115,7 +113,7 @@ query params, and query fragment.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Scheme</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Scheme</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -130,7 +128,7 @@ values.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">User</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">User</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">User</span><span class="p">.</span><span class="nx">Username</span><span class="p">())</span>
|
||||
<span class="nx">p</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">u</span><span class="p">.</span><span class="nx">User</span><span class="p">.</span><span class="nx">Password</span><span class="p">()</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">p</span><span class="p">)</span>
|
||||
@ -147,7 +145,7 @@ if present. Use <code>SplitHostPort</code> to extract them.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Host</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Host</span><span class="p">)</span>
|
||||
<span class="nx">host</span><span class="p">,</span> <span class="nx">port</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">net</span><span class="p">.</span><span class="nx">SplitHostPort</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Host</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">host</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">port</span><span class="p">)</span>
|
||||
@ -164,7 +162,7 @@ the <code>#</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Path</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Path</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">Fragment</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -182,7 +180,7 @@ if you only want the first value.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">RawQuery</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">RawQuery</span><span class="p">)</span>
|
||||
<span class="nx">m</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">url</span><span class="p">.</span><span class="nx">ParseQuery</span><span class="p">(</span><span class="nx">u</span><span class="p">.</span><span class="nx">RawQuery</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">m</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">m</span><span class="p">[</span><span class="s">"k"</span><span class="p">][</span><span class="mi">0</span><span class="p">])</span>
|
||||
@ -204,7 +202,7 @@ pieces that we extracted.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run url-parsing.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run url-parsing.go
|
||||
<span class="go">postgres</span>
|
||||
<span class="go">user:pass</span>
|
||||
<span class="go">user</span>
|
||||
@ -233,5 +231,10 @@ pieces that we extracted.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/url-parsing">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"net\"\u000Aimport \"net/url\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' s := \"postgres://user:pass@host.com:5432/path?k=v#f\"\u000A');codeLines.push(' u, err := url.Parse(s)\u000A if err != nil {\u000A panic(err)\u000A }\u000A');codeLines.push(' fmt.Println(u.Scheme)\u000A');codeLines.push(' fmt.Println(u.User)\u000A fmt.Println(u.User.Username())\u000A p, _ := u.User.Password()\u000A fmt.Println(p)\u000A');codeLines.push(' fmt.Println(u.Host)\u000A host, port, _ := net.SplitHostPort(u.Host)\u000A fmt.Println(host)\u000A fmt.Println(port)\u000A');codeLines.push(' fmt.Println(u.Path)\u000A fmt.Println(u.Fragment)\u000A');codeLines.push(' fmt.Println(u.RawQuery)\u000A m, _ := url.ParseQuery(u.RawQuery)\u000A fmt.Println(m)\u000A fmt.Println(m[\"k\"][0])\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
25
public/values
generated
25
public/values
generated
@ -34,7 +34,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ basic examples.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/aGiVohrYqYC">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/aGiVohrYqYC"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -70,7 +68,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -83,7 +81,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"go"</span> <span class="o">+</span> <span class="s">"lang"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"go"</span> <span class="o">+</span> <span class="s">"lang"</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -96,7 +94,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"1+1 ="</span><span class="p">,</span> <span class="mi">1</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"1+1 ="</span><span class="p">,</span> <span class="mi">1</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"7.0/3.0 ="</span><span class="p">,</span> <span class="mf">7.0</span><span class="o">/</span><span class="mf">3.0</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -110,7 +108,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="kc">true</span> <span class="o">&&</span> <span class="kc">false</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="kc">true</span> <span class="o">&&</span> <span class="kc">false</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="kc">true</span> <span class="o">||</span> <span class="kc">false</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(!</span><span class="kc">true</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -129,7 +127,7 @@ basic examples.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run values.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run values.go
|
||||
<span class="go">golang</span>
|
||||
<span class="go">1+1 = 2</span>
|
||||
<span class="go">7.0/3.0 = 2.3333333333333335</span>
|
||||
@ -152,5 +150,10 @@ basic examples.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/values">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' fmt.Println(\"go\" + \"lang\")\u000A');codeLines.push(' fmt.Println(\"1+1 =\", 1+1)\u000A fmt.Println(\"7.0/3.0 =\", 7.0/3.0)\u000A');codeLines.push(' fmt.Println(true && false)\u000A fmt.Println(true || false)\u000A fmt.Println(!true)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
29
public/variables
generated
29
public/variables
generated
@ -34,7 +34,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -43,10 +43,8 @@ calls.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/kwm2xuWnlKq">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/kwm2xuWnlKq"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -58,7 +56,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -70,7 +68,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -83,7 +81,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">a</span> <span class="p">=</span> <span class="s">"initial"</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">a</span> <span class="p">=</span> <span class="s">"initial"</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">a</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -97,7 +95,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">b</span><span class="p">,</span> <span class="nx">c</span> <span class="kt">int</span> <span class="p">=</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">b</span><span class="p">,</span> <span class="nx">c</span> <span class="kt">int</span> <span class="p">=</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">b</span><span class="p">,</span> <span class="nx">c</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -111,7 +109,7 @@ calls.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">d</span> <span class="p">=</span> <span class="kc">true</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">d</span> <span class="p">=</span> <span class="kc">true</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -127,7 +125,7 @@ zero value for an <code>int</code> is <code>0</code>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">e</span> <span class="kt">int</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">e</span> <span class="kt">int</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -143,7 +141,7 @@ initializing a variable, e.g. for
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span> <span class="o">:=</span> <span class="s">"apple"</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span> <span class="o">:=</span> <span class="s">"apple"</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -161,7 +159,7 @@ initializing a variable, e.g. for
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run variables.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run variables.go
|
||||
<span class="go">initial</span>
|
||||
<span class="go">1 2</span>
|
||||
<span class="go">true</span>
|
||||
@ -183,5 +181,10 @@ initializing a variable, e.g. for
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/variables">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var a = \"initial\"\u000A fmt.Println(a)\u000A');codeLines.push(' var b, c int = 1, 2\u000A fmt.Println(b, c)\u000A');codeLines.push(' var d = true\u000A fmt.Println(d)\u000A');codeLines.push(' var e int\u000A fmt.Println(e)\u000A');codeLines.push(' f := \"apple\"\u000A fmt.Println(f)\u000A}\u000A');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
27
public/variadic-functions
generated
27
public/variadic-functions
generated
@ -35,7 +35,7 @@ function.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -44,10 +44,8 @@ function.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/7f0JlVhToDD">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/7f0JlVhToDD"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -59,7 +57,7 @@ function.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -73,7 +71,7 @@ of <code>int</code>s as arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">sum</span><span class="p">(</span><span class="nx">nums</span> <span class="o">...</span><span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">sum</span><span class="p">(</span><span class="nx">nums</span> <span class="o">...</span><span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Print</span><span class="p">(</span><span class="nx">nums</span><span class="p">,</span> <span class="s">" "</span><span class="p">)</span>
|
||||
<span class="nx">total</span> <span class="o">:=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="nx">_</span><span class="p">,</span> <span class="nx">num</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">nums</span> <span class="p">{</span>
|
||||
@ -92,7 +90,7 @@ of <code>int</code>s as arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -106,7 +104,7 @@ with individual arguments.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">sum</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">sum</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="nx">sum</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -122,7 +120,7 @@ apply them to a variadic function using
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">nums</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">nums</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">4</span><span class="p">}</span>
|
||||
<span class="nx">sum</span><span class="p">(</span><span class="nx">nums</span><span class="o">...</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -140,7 +138,7 @@ apply them to a variadic function using
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run variadic-functions.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run variadic-functions.go
|
||||
<span class="go">[1 2] 3</span>
|
||||
<span class="go">[1 2 3] 6</span>
|
||||
<span class="go">[1 2 3 4] 10</span>
|
||||
@ -157,7 +155,7 @@ to form closures, which we’ll look at next.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -172,5 +170,10 @@ to form closures, which we’ll look at next.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/variadic-functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func sum(nums ...int) {\u000A fmt.Print(nums, \" \")\u000A total := 0\u000A for _, num := range nums {\u000A total += num\u000A }\u000A fmt.Println(total)\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' sum(1, 2)\u000A sum(1, 2, 3)\u000A');codeLines.push(' nums := []int{1, 2, 3, 4}\u000A sum(nums...)\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
33
public/waitgroups
generated
33
public/waitgroups
generated
@ -33,7 +33,7 @@ use a <em>wait group</em>.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ use a <em>wait group</em>.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/gLLmgcR7YkP">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/gLLmgcR7YkP"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ use a <em>wait group</em>.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"sync"</span>
|
||||
<span class="s">"time"</span>
|
||||
@ -76,7 +74,7 @@ pointer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">id</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">wg</span> <span class="o">*</span><span class="nx">sync</span><span class="p">.</span><span class="nx">WaitGroup</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">id</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">wg</span> <span class="o">*</span><span class="nx">sync</span><span class="p">.</span><span class="nx">WaitGroup</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"Worker %d starting\n"</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -90,7 +88,7 @@ pointer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"Worker %d done\n"</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -104,7 +102,7 @@ pointer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">wg</span><span class="p">.</span><span class="nx">Done</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">wg</span><span class="p">.</span><span class="nx">Done</span><span class="p">()</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -117,7 +115,7 @@ pointer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -131,7 +129,7 @@ goroutines launched here to finish.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">wg</span> <span class="nx">sync</span><span class="p">.</span><span class="nx">WaitGroup</span>
|
||||
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">wg</span> <span class="nx">sync</span><span class="p">.</span><span class="nx">WaitGroup</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -145,7 +143,7 @@ counter for each.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">i</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">wg</span><span class="p">.</span><span class="nx">Add</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="k">go</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="o">&</span><span class="nx">wg</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -162,7 +160,7 @@ all the workers notified they’re done.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">wg</span><span class="p">.</span><span class="nx">Wait</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">wg</span><span class="p">.</span><span class="nx">Wait</span><span class="p">()</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
@ -179,7 +177,7 @@ all the workers notified they’re done.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run waitgroups.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run waitgroups.go
|
||||
<span class="go">Worker 5 starting</span>
|
||||
<span class="go">Worker 3 starting</span>
|
||||
<span class="go">Worker 4 starting</span>
|
||||
@ -203,7 +201,7 @@ is likely to be different for each invocation.</p>
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -218,5 +216,10 @@ is likely to be different for each invocation.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/waitgroups">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"sync\"\u000A \"time\"\u000A)\u000A');codeLines.push('func worker(id int, wg *sync.WaitGroup) {\u000A fmt.Printf(\"Worker %d starting\\n\", id)\u000A');codeLines.push(' time.Sleep(time.Second)\u000A fmt.Printf(\"Worker %d done\\n\", id)\u000A');codeLines.push(' wg.Done()\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' var wg sync.WaitGroup\u000A');codeLines.push(' for i := 1; i \x3C= 5; i++ {\u000A wg.Add(1)\u000A go worker(i, &wg)\u000A }\u000A');codeLines.push(' wg.Wait()\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
31
public/worker-pools
generated
31
public/worker-pools
generated
@ -33,7 +33,7 @@ a <em>worker pool</em> using goroutines and channels.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ a <em>worker pool</em> using goroutines and channels.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/yuHsGf712D1">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/yuHsGf712D1"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ a <em>worker pool</em> using goroutines and channels.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="s">"fmt"</span>
|
||||
<span class="kn">import</span> <span class="s">"time"</span>
|
||||
</pre></div>
|
||||
|
||||
@ -75,7 +73,7 @@ simulate an expensive task.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">id</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">jobs</span> <span class="o"><-</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">results</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">id</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">jobs</span> <span class="o"><-</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="nx">results</span> <span class="kd">chan</span><span class="o"><-</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">jobs</span> <span class="p">{</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"worker"</span><span class="p">,</span> <span class="nx">id</span><span class="p">,</span> <span class="s">"started job"</span><span class="p">,</span> <span class="nx">j</span><span class="p">)</span>
|
||||
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
|
||||
@ -94,7 +92,7 @@ simulate an expensive task.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -109,7 +107,7 @@ channels for this.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">jobs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">100</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">jobs</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">100</span><span class="p">)</span>
|
||||
<span class="nx">results</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">int</span><span class="p">,</span> <span class="mi">100</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -124,7 +122,7 @@ because there are no jobs yet.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">w</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">w</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">w</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">;</span> <span class="nx">w</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="k">go</span> <span class="nx">worker</span><span class="p">(</span><span class="nx">w</span><span class="p">,</span> <span class="nx">jobs</span><span class="p">,</span> <span class="nx">results</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
</pre></div>
|
||||
@ -140,7 +138,7 @@ channel to indicate that’s all the work we have.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">j</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">j</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="nx">jobs</span> <span class="o"><-</span> <span class="nx">j</span>
|
||||
<span class="p">}</span>
|
||||
<span class="nb">close</span><span class="p">(</span><span class="nx">jobs</span><span class="p">)</span>
|
||||
@ -159,7 +157,7 @@ goroutines is to use a <a href="waitgroups">WaitGroup</a>.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">a</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">a</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">a</span><span class="o">++</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="nx">a</span> <span class="o">:=</span> <span class="mi">1</span><span class="p">;</span> <span class="nx">a</span> <span class="o"><=</span> <span class="mi">5</span><span class="p">;</span> <span class="nx">a</span><span class="o">++</span> <span class="p">{</span>
|
||||
<span class="o"><-</span><span class="nx">results</span>
|
||||
<span class="p">}</span>
|
||||
<span class="p">}</span>
|
||||
@ -182,7 +180,7 @@ there are 3 workers operating concurrently.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">time</span> go run worker-pools.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> <span class="nb">time</span> go run worker-pools.go
|
||||
<span class="go">worker 1 started job 1</span>
|
||||
<span class="go">worker 2 started job 2</span>
|
||||
<span class="go">worker 3 started job 3</span>
|
||||
@ -204,7 +202,7 @@ there are 3 workers operating concurrently.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="go">real 0m2.358s</span>
|
||||
<div class="highlight"><pre><span class="go">real 0m2.358s</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -221,5 +219,10 @@ there are 3 workers operating concurrently.</p>
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/worker-pools">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000Aimport \"time\"\u000A');codeLines.push('func worker(id int, jobs \x3C-chan int, results chan\x3C- int) {\u000A for j := range jobs {\u000A fmt.Println(\"worker\", id, \"started job\", j)\u000A time.Sleep(time.Second)\u000A fmt.Println(\"worker\", id, \"finished job\", j)\u000A results \x3C- j * 2\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' jobs := make(chan int, 100)\u000A results := make(chan int, 100)\u000A');codeLines.push(' for w := 1; w \x3C= 3; w++ {\u000A go worker(w, jobs, results)\u000A }\u000A');codeLines.push(' for j := 1; j \x3C= 5; j++ {\u000A jobs \x3C- j\u000A }\u000A close(jobs)\u000A');codeLines.push(' for a := 1; a \x3C= 5; a++ {\u000A \x3C-results\u000A }\u000A}\u000A');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
43
public/writing-files
generated
43
public/writing-files
generated
@ -33,7 +33,7 @@ ones we saw earlier for reading.</p>
|
||||
</td>
|
||||
<td class="code empty leading">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -42,10 +42,8 @@ ones we saw earlier for reading.</p>
|
||||
|
||||
</td>
|
||||
<td class="code leading">
|
||||
<a href="http://play.golang.org/p/gyJn9PcndtP">
|
||||
<img title="Run code" class="run" src="data:image/png;base64,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" />
|
||||
</a>
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
<a href="http://play.golang.org/p/gyJn9PcndtP"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
|
||||
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -57,7 +55,7 @@ ones we saw earlier for reading.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
|
||||
<span class="s">"bufio"</span>
|
||||
<span class="s">"fmt"</span>
|
||||
<span class="s">"io/ioutil"</span>
|
||||
@ -74,7 +72,7 @@ ones we saw earlier for reading.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">check</span><span class="p">(</span><span class="nx">e</span> <span class="kt">error</span><span class="p">)</span> <span class="p">{</span>
|
||||
<span class="k">if</span> <span class="nx">e</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
|
||||
<span class="nb">panic</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
|
||||
<span class="p">}</span>
|
||||
@ -90,7 +88,7 @@ ones we saw earlier for reading.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -104,7 +102,7 @@ bytes) into a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">d1</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"hello\ngo\n"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">d1</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">"hello\ngo\n"</span><span class="p">)</span>
|
||||
<span class="nx">err</span> <span class="o">:=</span> <span class="nx">ioutil</span><span class="p">.</span><span class="nx">WriteFile</span><span class="p">(</span><span class="s">"/tmp/dat1"</span><span class="p">,</span> <span class="nx">d1</span><span class="p">,</span> <span class="mo">0644</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -119,7 +117,7 @@ bytes) into a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="s">"/tmp/dat2"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="s">"/tmp/dat2"</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -134,7 +132,7 @@ after opening a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="k">defer</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -147,7 +145,7 @@ after opening a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">d2</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">byte</span><span class="p">{</span><span class="mi">115</span><span class="p">,</span> <span class="mi">111</span><span class="p">,</span> <span class="mi">109</span><span class="p">,</span> <span class="mi">101</span><span class="p">,</span> <span class="mi">10</span><span class="p">}</span>
|
||||
<div class="highlight"><pre> <span class="nx">d2</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">byte</span><span class="p">{</span><span class="mi">115</span><span class="p">,</span> <span class="mi">111</span><span class="p">,</span> <span class="mi">109</span><span class="p">,</span> <span class="mi">101</span><span class="p">,</span> <span class="mi">10</span><span class="p">}</span>
|
||||
<span class="nx">n2</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Write</span><span class="p">(</span><span class="nx">d2</span><span class="p">)</span>
|
||||
<span class="nx">check</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"wrote %d bytes\n"</span><span class="p">,</span> <span class="nx">n2</span><span class="p">)</span>
|
||||
@ -163,7 +161,7 @@ after opening a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">n3</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">WriteString</span><span class="p">(</span><span class="s">"writes\n"</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">n3</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">WriteString</span><span class="p">(</span><span class="s">"writes\n"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"wrote %d bytes\n"</span><span class="p">,</span> <span class="nx">n3</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
|
||||
@ -177,7 +175,7 @@ after opening a file.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">.</span><span class="nx">Sync</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">f</span><span class="p">.</span><span class="nx">Sync</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -191,7 +189,7 @@ to the buffered readers we saw earlier.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">w</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewWriter</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<div class="highlight"><pre> <span class="nx">w</span> <span class="o">:=</span> <span class="nx">bufio</span><span class="p">.</span><span class="nx">NewWriter</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
|
||||
<span class="nx">n4</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">w</span><span class="p">.</span><span class="nx">WriteString</span><span class="p">(</span><span class="s">"buffered\n"</span><span class="p">)</span>
|
||||
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Printf</span><span class="p">(</span><span class="s">"wrote %d bytes\n"</span><span class="p">,</span> <span class="nx">n4</span><span class="p">)</span>
|
||||
</pre></div>
|
||||
@ -207,7 +205,7 @@ been applied to the underlying writer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre> <span class="nx">w</span><span class="p">.</span><span class="nx">Flush</span><span class="p">()</span>
|
||||
<div class="highlight"><pre> <span class="nx">w</span><span class="p">.</span><span class="nx">Flush</span><span class="p">()</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -219,7 +217,7 @@ been applied to the underlying writer.</p>
|
||||
</td>
|
||||
<td class="code">
|
||||
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
<div class="highlight"><pre><span class="p">}</span>
|
||||
</pre></div>
|
||||
|
||||
</td>
|
||||
@ -236,7 +234,7 @@ been applied to the underlying writer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run writing-files.go
|
||||
<div class="highlight"><pre><span class="gp">$</span> go run writing-files.go
|
||||
<span class="go">wrote 5 bytes</span>
|
||||
<span class="go">wrote 7 bytes</span>
|
||||
<span class="go">wrote 9 bytes</span>
|
||||
@ -252,7 +250,7 @@ been applied to the underlying writer.</p>
|
||||
</td>
|
||||
<td class="code leading">
|
||||
|
||||
<div class="highlight"><pre><span class="gp">$</span> cat /tmp/dat1
|
||||
<div class="highlight"><pre><span class="gp">$</span> cat /tmp/dat1
|
||||
<span class="go">hello</span>
|
||||
<span class="go">go</span>
|
||||
<span class="gp">$</span> cat /tmp/dat2
|
||||
@ -272,7 +270,7 @@ we’ve just seen to the <code>stdin</code> and <code>stdout</code> streams.
|
||||
</td>
|
||||
<td class="code empty">
|
||||
|
||||
|
||||
|
||||
</td>
|
||||
</tr>
|
||||
|
||||
@ -287,5 +285,10 @@ we’ve just seen to the <code>stdin</code> and <code>stdout</code> streams.
|
||||
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/writing-files">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
|
||||
</p>
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"bufio\"\u000A \"fmt\"\u000A \"io/ioutil\"\u000A \"os\"\u000A)\u000A');codeLines.push('func check(e error) {\u000A if e != nil {\u000A panic(e)\u000A }\u000A}\u000A');codeLines.push('func main() {\u000A');codeLines.push(' d1 := []byte(\"hello\\ngo\\n\")\u000A err := ioutil.WriteFile(\"/tmp/dat1\", d1, 0644)\u000A check(err)\u000A');codeLines.push(' f, err := os.Create(\"/tmp/dat2\")\u000A check(err)\u000A');codeLines.push(' defer f.Close()\u000A');codeLines.push(' d2 := []byte{115, 111, 109, 101, 10}\u000A n2, err := f.Write(d2)\u000A check(err)\u000A fmt.Printf(\"wrote %d bytes\\n\", n2)\u000A');codeLines.push(' n3, err := f.WriteString(\"writes\\n\")\u000A fmt.Printf(\"wrote %d bytes\\n\", n3)\u000A');codeLines.push(' f.Sync()\u000A');codeLines.push(' w := bufio.NewWriter(f)\u000A n4, err := w.WriteString(\"buffered\\n\")\u000A fmt.Printf(\"wrote %d bytes\\n\", n4)\u000A');codeLines.push(' w.Flush()\u000A');codeLines.push('}\u000A');codeLines.push('');codeLines.push('');codeLines.push('');
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@ -30,8 +30,8 @@
|
||||
{{.DocsRendered}}
|
||||
</td>
|
||||
<td class="code{{if .CodeEmpty}} empty{{end}}{{if .CodeLeading}} leading{{end}}">
|
||||
{{if .CodeRun}}<a href="http://play.golang.org/p/{{$.UrlHash}}"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />{{end}}
|
||||
{{.CodeRendered}}
|
||||
{{if .CodeRun}}<a href="http://play.golang.org/p/{{$.URLHash}}"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />{{end}}
|
||||
{{.CodeRendered}}
|
||||
</td>
|
||||
</tr>
|
||||
{{end}}
|
||||
@ -48,7 +48,7 @@
|
||||
</div>
|
||||
<script>
|
||||
var codeLines = [];
|
||||
{{range .Segs}}{{range .}}codeLines.push('{{js .CodeForJs}}'); {{end}}{{end}}
|
||||
{{range .Segs}}{{range .}}codeLines.push('{{js .CodeForJs}}');{{end}}{{end}}
|
||||
</script>
|
||||
<script src="site.js" async></script>
|
||||
</body>
|
||||
|
||||
@ -141,9 +141,12 @@ img.copy, img.run {
|
||||
width: 16px;
|
||||
float: right
|
||||
}
|
||||
img.copy {
|
||||
img.copy, img.run {
|
||||
cursor: pointer;
|
||||
}
|
||||
img.copy {
|
||||
margin-right: 4px;
|
||||
}
|
||||
|
||||
/* Syntax highlighting */
|
||||
body .hll { background-color: #ffffcc }
|
||||
|
||||
@ -129,8 +129,8 @@ var dashPat = regexp.MustCompile("\\-+")
|
||||
// Seg is a segment of an example
|
||||
type Seg struct {
|
||||
Docs, DocsRendered string
|
||||
Code, CodeRendered, CodeForJs string
|
||||
CodeEmpty, CodeLeading, CodeRun bool
|
||||
Code, CodeRendered, CodeForJs string
|
||||
CodeEmpty, CodeLeading, CodeRun bool
|
||||
}
|
||||
|
||||
// Example is info extracted from an example file
|
||||
@ -224,9 +224,9 @@ func parseAndRenderSegs(sourcePath string) ([]*Seg, string) {
|
||||
if seg.Code != "" {
|
||||
seg.CodeRendered = cachedPygmentize(lexer, seg.Code)
|
||||
// adding the content to the js code for copying to the clipboard
|
||||
if strings.HasSuffix(sourcePath, ".go") {
|
||||
seg.CodeForJs = strings.Trim(seg.Code, "\n") + "\n"
|
||||
}
|
||||
if strings.HasSuffix(sourcePath, ".go") {
|
||||
seg.CodeForJs = strings.Trim(seg.Code, "\n") + "\n"
|
||||
}
|
||||
}
|
||||
}
|
||||
// we are only interested in the 'go' code to pass to play.golang.org
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user