lean into examples

examples/switch/switch.go

@@ -0,0 +1,30 @@
+// Switch statements allow...
+
+package main
+
+import "fmt"
+
+func main() {
+    fmt.Print("Write 3 as ")
+    i := 3
+    // Some basic commentary on switches.
+    switch i {
+    case 0:
+        fmt.Println("zero")
+    case 1:
+        fmt.Println("one")
+    case 2:
+        fmt.Println("two")
+    case 3:
+        fmt.Println("three")
+    case 4:
+        fmt.Println("four")
+    case 5:
+        fmt.Println("five")
+    // The `default` branch is optional in a `switch`.
+    default:
+        fmt.Println("???")
+    }
+}
+
+// todo: more complex / non-constant switch?

examples/switch/switch.sh

@@ -0,0 +1,2 @@
+$ go run switch.go 
+Write 3 as three