Tour of Go 2.0

Named return values

Go lets you give return values names. When you do, they act as variables initialized at the top of the function — and they serve as documentation for what the function actually returns.

A bare return with no arguments sends back the current values of those named returns. This is called a naked return.

Keep naked returns to short functions only. In longer functions, they make the code harder to follow.

main.go ▶ Run in Playground 
package main

import "fmt"

func split(sum int) (x, y int) {
	x = sum * 4 / 9
	y = sum - x
	return
}

func main() {
	fmt.Println(split(17))
}