Add examples of maps/slices packages
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Eli Bendersky
31
public/maps
generated
31
public/maps
generated
@@ -42,7 +42,7 @@
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</td>
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<td class="code leading">
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<a href="https://go.dev/play/p/6gcPOX9Mm1R"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
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<a href="https://go.dev/play/p/5jpkxJ2T0Lv"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
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<pre class="chroma"><code><span class="line"><span class="cl"><span class="kn">package</span> <span class="nx">main</span></span></span></code></pre>
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</td>
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</tr>
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@@ -53,7 +53,10 @@
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</td>
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<td class="code leading">
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<pre class="chroma"><code><span class="line"><span class="cl"><span class="kn">import</span> <span class="s">"fmt"</span></span></span></code></pre>
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<pre class="chroma"><code><span class="line"><span class="cl"><span class="kn">import</span> <span class="p">(</span>
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</span></span><span class="line"><span class="cl"> <span class="s">"fmt"</span>
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</span></span><span class="line"><span class="cl"> <span class="s">"maps"</span>
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</span></span><span class="line"><span class="cl"><span class="p">)</span></span></span></code></pre>
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</td>
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</tr>
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@@ -192,10 +195,25 @@ itself, so we ignored it with the <em>blank identifier</em>
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the same line with this syntax.</p>
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</td>
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<td class="code">
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<td class="code leading">
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<pre class="chroma"><code><span class="line"><span class="cl"> <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>
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</span></span><span class="line"><span class="cl"> <span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">"map:"</span><span class="p">,</span> <span class="nx">n</span><span class="p">)</span>
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</span></span><span class="line"><span class="cl"> <span class="nx">fmt</span><span class="p">.</span><span class="nf">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></span></code></pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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<p>The <code>maps</code> package contains a number of useful
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utility functions for maps.</p>
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</td>
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<td class="code">
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<pre class="chroma"><code><span class="line"><span class="cl"> <span class="nx">n2</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>
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</span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="nx">maps</span><span class="p">.</span><span class="nf">Equal</span><span class="p">(</span><span class="nx">n</span><span class="p">,</span> <span class="nx">n2</span><span class="p">)</span> <span class="p">{</span>
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</span></span><span class="line"><span class="cl"> <span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">"n == n2"</span><span class="p">)</span>
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</span></span><span class="line"><span class="cl"> <span class="p">}</span>
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</span></span><span class="line"><span class="cl"><span class="p">}</span></span></span></code></pre>
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</td>
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</tr>
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@@ -220,7 +238,8 @@ printed with <code>fmt.Println</code>.</p>
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</span></span></span><span class="line"><span class="cl"><span class="go">map: map[k1:7]
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</span></span></span><span class="line"><span class="cl"><span class="go">map: map[]
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</span></span></span><span class="line"><span class="cl"><span class="go">prs: false
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</span></span></span><span class="line"><span class="cl"><span class="go">map: map[bar:2 foo:1]</span></span></span></code></pre>
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</span></span></span><span class="line"><span class="cl"><span class="go">map: map[bar:2 foo:1]
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</span></span></span><span class="line"><span class="cl"><span class="go">n == n2</span></span></span></code></pre>
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</td>
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</tr>
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@@ -239,7 +258,7 @@ printed with <code>fmt.Println</code>.</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(' m :\u003D make(map[string]int)\u000A');codeLines.push(' m[\"k1\"] \u003D 7\u000A m[\"k2\"] \u003D 13\u000A');codeLines.push(' fmt.Println(\"map:\", m)\u000A');codeLines.push(' v1 :\u003D m[\"k1\"]\u000A fmt.Println(\"v1:\", v1)\u000A');codeLines.push(' v3 :\u003D m[\"k3\"]\u000A fmt.Println(\"v3:\", v3)\u000A');codeLines.push(' fmt.Println(\"len:\", len(m))\u000A');codeLines.push(' delete(m, \"k2\")\u000A fmt.Println(\"map:\", m)\u000A');codeLines.push(' clear(m)\u000A fmt.Println(\"map:\", m)\u000A');codeLines.push(' _, prs :\u003D m[\"k2\"]\u000A fmt.Println(\"prs:\", prs)\u000A');codeLines.push(' n :\u003D map[string]int{\"foo\": 1, \"bar\": 2}\u000A fmt.Println(\"map:\", n)\u000A}\u000A');codeLines.push('');
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codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import (\u000A \"fmt\"\u000A \"maps\"\u000A)\u000A');codeLines.push('func main() {\u000A');codeLines.push(' m :\u003D make(map[string]int)\u000A');codeLines.push(' m[\"k1\"] \u003D 7\u000A m[\"k2\"] \u003D 13\u000A');codeLines.push(' fmt.Println(\"map:\", m)\u000A');codeLines.push(' v1 :\u003D m[\"k1\"]\u000A fmt.Println(\"v1:\", v1)\u000A');codeLines.push(' v3 :\u003D m[\"k3\"]\u000A fmt.Println(\"v3:\", v3)\u000A');codeLines.push(' fmt.Println(\"len:\", len(m))\u000A');codeLines.push(' delete(m, \"k2\")\u000A fmt.Println(\"map:\", m)\u000A');codeLines.push(' clear(m)\u000A fmt.Println(\"map:\", m)\u000A');codeLines.push(' _, prs :\u003D m[\"k2\"]\u000A fmt.Println(\"prs:\", prs)\u000A');codeLines.push(' n :\u003D map[string]int{\"foo\": 1, \"bar\": 2}\u000A fmt.Println(\"map:\", n)\u000A');codeLines.push(' n2 :\u003D map[string]int{\"foo\": 1, \"bar\": 2}\u000A if maps.Equal(n, n2) {\u000A fmt.Println(\"n \u003D\u003D n2\")\u000A }\u000A}\u000A');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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