babymetal-death.go

package main

import (
	"fmt"
	"time"
)

func Screaming(names <-chan string, control <-chan bool) {
	ticker := time.Tick(500 * time.Millisecond)
	for {
		select {
		case name := <-names:
			fmt.Printf("%v DEATH!\n", name)
		case <-ticker:
			fmt.Println("... DEATH!")
		case <-control:
			break
		}
	}
}

func main() {
	names := []string{"YUIMETAL", "MOAMETAL", "SU-METAL"}

	ch := make(chan string)
	defer close(ch)
	c := make(chan bool)
	defer close(c)
	go Screaming(ch, c)

	for _, name := range names {
		time.Sleep(4 * time.Second)
		ch <- name
	}
	c <- true
}