Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by nate munde
nate munde
7,519 Points

Classes and Objects

I have tried this multiple ways and cannot get the code to go through. what am I missing?

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 {
  return width + (points:); height + (points:)
  }
}

1 Answer

landonferrier
landonferrier
25,097 Points

Nate, it looks like you are writing this method to return the values of the incremented height and width, all you need to do is increment them like the following:

class Button {
    var width: Double
    var height: Double

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

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

If you have any more questions, feel free to ask!