Timer goroutine pattern

goroutine_timer.go

package main

import (
	"fmt"
	"time"
)

func main() {
	for i := 0; i < 10; i++ {
		ch := timer(1 * time.Second)
		currentTime := <-ch
		fmt.Println(currentTime.Format("Mon Jan _2 15:04:05 2006"))
	}
}

func timer(t time.Duration)<-chan time.Time{
	ch := make(chan time.Time)
	go func() {
		time.Sleep(t)
		ch <- time.Now()
	}()
	return ch
}