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iOS Object-Oriented Swift Inheritance Overriding Methods

Martin Franzner
Martin Franzner
3,300 Points

add incrementBy to round button

This is my code, I don't see the error, what is bugging my code? Hope you help me! Thanks!

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
           height += points
  }
}

class RoundButton: Button {
  var cornerRadius: Double = 5.0

  override func incrementBy(_ points: Double = 7.0) -> Double {
    return super.incrementBy(points)

  }
}