Understanding Tapgesture syntax - Swift

Question

Suppose I have the following function:

 @objc func action(_ gesture : UITapGestureRecognizer){}

Now to call the function, we usually use a syntax like so:

let mygesture = UITapGestureRecognizer(target: self, action: #selector(action(_:)))

What does the syntax action(_:) actually mean? How are we passing the value of the input parameter gesture required by the function? Doesn't it has to be something like action(_: somevalue)

From my guess, we are only providing the access to the function by writing action(_:) . And the function is actually called by passing the mygesture variable itself when the tap gesture is triggered. Is that correct?

Answer 1

You're right. You're passing the pointer of the function to the gesture recognizer.