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

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

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.