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iOS Object-Oriented Swift Classes and Objects Classes and Their Methods

How do you add points to both width and height in the same function without prompting an error?

I tried separating it with a semicolon but cannot seem to get it to work.

class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  func incrementBy(points: Double) -> Double {
  width = width + points ; height = height + points

1 Answer

'func incrementBy(points: Double) -> Double' you say that your function will return a Double but there is no return in your function !