bufferedChannel.go

package main

import (
	"fmt"
	"sync"
)

var wg = sync.WaitGroup{}

func main() {
	ch := make(chan struct{}, 40)
	wg.Add(2)

	//sending channel
	go func(ch chan<- struct{}) {
		println("sending 42 to channel")
		ch <- struct{}{}
		ch <- struct{}{}
		wg.Done()

	}(ch)

	//receive channel
	go func(ch <-chan struct{}) {
		fmt.Println(<-ch)
		//uncomment to see second element in buffered channel
		// fmt.Println(<-ch)
		wg.Done()
	}(ch)

	wg.Wait()

}