shuffle slice / demo http://play.golang.org/p/fCaOHAwMer

shuffle.go

package main

import "fmt"
import "math/rand"

func shuffleSlice(slice []interface{}) []interface{} {
	for i := range slice {
		j := rand.Intn(i + 1)
		slice[i], slice[j] = slice[j], slice[i]
	}
	return slice
}

func main() {

	list := make([]interface{}, 4)

	list[0] = "foo"
	list[1] = "bar"
	list[2] = "foo1"
	list[3] = "bar1"

	list = shuffleSlice(list)
	fmt.Println(list...)
	list = shuffleSlice(list)
	fmt.Println(list...)
	list = shuffleSlice(list)
	fmt.Println(list...)
	list = shuffleSlice(list)
	fmt.Println(list...)
}