if, switch, goto / goto statements / Essential Go

package main

import "fmt"

func printIsOdd(n int) {
	if n%2 == 1 {
		goto isOdd
	}
	fmt.Printf("%d is even\n", n)
	return

isOdd:
	fmt.Printf("%d is odd\n", n)
}

func main() {
	printIsOdd(5)
	printIsOdd(18)
}