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

Bruno Fernandes
Bruno Fernandes
2,413 Points
Posted by Bruno Fernandes
Bruno Fernandes
2,413 Points

Why isn't this working?

Why doesn't it work?

Button.swift 
class Button {
  var width: Double
  var height: Double

  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }

  func incrementBy(points: Double) -> Double {
      return width + points
      return height + points
  }
}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi Bruno,

You are returning two things from your incrementBy method. The method shouldn't return anything as it is just accessing the member variables.

The method needs to receive a parameter; a number to increment the two instance variables by. It then adds the parameter value to the two variables. Something like:

  func incrementBy(points: Double) {
    self.width += points
    self.height += points
  }

I hope that makes sense.

Steve.