27-channel-buffering.go

// By default channels are unbuffered, meaning that they will only accept sends (chan <-) if there is a corresponding receive (<- chan) ready to receive the sent value. Buffered channels accept a limited number of values without a corresponding receiver for those values.

package main

import "fmt"

func main() {

	messages := make(chan string, 2)

	messages <- "buffered"
	messages <- "channel"

	fmt.Println(<-messages)
	fmt.Println(<-messages)
}