Optional func/method arguments in Go

[Alex_Leonhardt]

As an extension to my previous post …

Optional func/method args

Hi, I was wondering what the best way is to allow optional arguments when calling a function/method - the idea really is that I don’t want to force a person to set values that’d be used by something like time.Sleep inside the function that’s being called … func f(delay time.Duration) { time.Sleep(delay) fmt.Println("I slept for", delay) } If I want to call the func f() I will have to provide a delay f(time.Duration(0)), even if I don’t want / need to as the default value for time.Duration …

… since then I found Uber’s Go style-guide to be super helpful, especially how they are dealing with optionals and defaults: Uber Func Options

Just wanted to share as it helped me a lot.

Thanks!
Alex