Data commit

Task/Menu/Go/menu.go

@@ -0,0 +1,37 @@
+package main
+
+import "fmt"
+
+func menu(choices []string, prompt string) string {
+    if len(choices) == 0 {
+        return ""
+    }
+    var c int
+    for {
+        fmt.Println("")
+        for i, s := range choices {
+            fmt.Printf("%d.  %s\n", i+1, s)
+        }
+        fmt.Print(prompt)
+        _, err := fmt.Scanln(&c)
+
+        if err == nil && c > 0 && c <= len(choices) {
+            break
+        }
+    }
+    return choices[c-1]
+}
+
+func main() {
+    pick := menu(nil, "No prompt")
+    fmt.Printf("No choices, result = %q\n", pick)
+
+    choices := []string{
+        "fee fie",
+        "huff and puff",
+        "mirror mirror",
+        "tick tock",
+    }
+    pick = menu(choices, "Enter number: ")
+    fmt.Printf("You picked %q\n", pick)
+}