Go ticker sample (It no leaks)

ticker.go

package main

import (
	"fmt"
	"time"
)

func main() {
	ticker := time.NewTicker(1 * time.Second)
	defer ticker.Stop()

	tickEnd := make(chan struct{})

	go func() {
		defer fmt.Println("goroutine end")
		for {
			select {
			case t := <-ticker.C:
				fmt.Println("tick", t.Second())
			case <-tickEnd:
				fmt.Println("end notify")
				return
			}
		}
	}()

	time.Sleep(time.Second*2)
	close(tickEnd)
	time.Sleep(time.Second*1)

	fmt.Println("main end")
}