go switch
// switch statement
switch operatingSystem {
case "darwin":
fmt.Println("Mac OS Hipster")
// cases break automatically, no fallthrough by default
case "linux":
fmt.Println("Linux Geek")
default:
// Windows, BSD, ...
fmt.Println("Other")
}
// as with for and if, you can have an assignment statement before the switch value
switch os := runtime.GOOS; os {
case "darwin": ...
}
// you can also make comparisons in switch cases
number := 42
switch {
case number < 42:
fmt.Println("Smaller")
case number == 42:
fmt.Println("Equal")
case number > 42:
fmt.Println("Greater")
}
// cases can be presented in comma-separated lists
var char byte = '?'
switch char {
case ' ', '?', '&', '=', '#', '+', '%':
fmt.Println("Should escape")
}