What is it

A switch statement is a shorter way to write a sequence of if - else statements.

It runs the first case whose value is equal to the condition expression.

package main

import (
	"fmt"
	"runtime"
)

func main() {
	os := runtime.GOOS

	switch os {
	case "darwin":
		fmt.Println("OS X.")
	case "linux":
		fmt.Println("Linux.")
	case "windows":
		fmt.Println("Window.")
	default:
	  fmt.Printf("%s.\n", os) // freebsd, openbsd, plan9
	}
}

Skip Expression and Eval Every Time

Statement to run switch on every evaluation

other_var_for_conditional := "some_value"

switch true {
	case other_var_for_conditional == "not this":
		fmt.Println("no")
	case other_var_for_conditional == "not this either":
		fmt.Println("no")
	case other_var_for_conditional == "some_value":
		fmt.Println("yes")
	default:
	  fmt.Printf("no")