Function worker

examples/waitgroups/waitgroups.go:13–19

This is the function we'll run in every goroutine.

(id int)

// This is the function we'll run in every goroutine.
func worker(id int) {
	fmt.Printf("Worker %d starting\n", id)

	// Sleep to simulate an expensive task.
	time.Sleep(time.Second)
	fmt.Printf("Worker %d done\n", id)
}

func main() {