📦 jtr109 / go-playground

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24package main

import (
	"fmt"
	"runtime"
	"time"
)

func main() {
	var ch chan int
	go func() {
		ch = make(chan int, 1)
		ch <- 1
	}()
	go func(ch chan int) {
		time.Sleep(5 * time.Second)
		<-ch
	}(ch)
	c := time.Tick(500 * time.Millisecond)
	for range c {
		fmt.Printf("#goroutines: %d\n", runtime.NumGoroutine())
	}
}