How to set a function as function argument in Swift 3

Question

Q: Is it possible to pass a function as function argument in Swift 3?

To refactor my code, I want to have a global function. At the end of this function

Answer 1

Functions are first class in swift so you can pass them like so:

func getButton(_ myFunc: () -> Void, _ title: String) {

You need to specify the signature of the function in the type, i.e. parameter types and return type