type-switches

Language: Gold, Platform: Echoes, Category: Tour of Go
https://github.com/remobjects/ElementsSamples/tree/master/Gold/Echoes/Tour of Go/type-switches

• type-switches.Echoes
  • References
    • #
  • Source Files
    • type-switches.go
  • Other Files

type-switches.go

// Ignored build directive: +build OMIT

package main

import "fmt"

func do(i interface{}) {
	switch v := i.(type) {
	case int:
		fmt.Printf("Twice %v is %v\n", v, v*2)
	case string:
		fmt.Printf("%q is %v bytes long\n", v, len(v))
	default:
		fmt.Printf("I don't know about type %T!\n", v)
	}
}

func main() {
	do(21)
	do("hello")
	do(true)
}