waterfall in go

waterfall.go

package main

import (
	"fmt"
	"time"
	"strconv"
)

func getFio () chan int {
	c := make(chan int)
	go func (){
		time.Sleep(time.Second*2)
		c <- 23
	}()
	return c
}

func getTax (id int) chan string{
	c := make(chan string)
	time.Sleep(time.Second*4)
	go func (){
		c <- "Tax for user " + strconv.Itoa(id) + " is " + strconv.Itoa(id*2)
	}()
	return c
}

func main (){
	id := getFio()
	fmt.Println(<-getTax(<-id))
}