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

Still getting error in challenge on Swift Function override when no errors in playground!

Getting errors in code challenge when code doesn't show any errors and return proper values in Swift playground. Help!

Here is code:

// Challenge Team Treehouse Override Method

import UIKit

class Button {
    var width: Double
    var height: Double

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

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

class RoundButton: Button {
    var cornerRadius: Double = 5.0

    override func incrementBy(points: Double = 7.0) {
        super.incrementBy(points)
    }
}

let rb = RoundButton(width: 5, height: 12)
rb.cornerRadius  //5
rb.width //5
rb.height  //12
rb.incrementBy()
rb.width  //12
rb.height //19

Can also provide screenshots of what the code challenge shows if someone refreshes me on how to achieve that.

Thanks!

1 Answer

Try 10 & 17 for your last 2 values, otherwaise your code matches mine:

class Button { var width: Double var height: Double

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

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

}

class RoundButton: Button { var cornerRadius: Double = 5.0

override func incrementBy(points: Double = 7.0) {
    super.incrementBy(points)
}

}

let rb = RoundButton(width: 5, height: 12) rb.cornerRadius //5 rb.width //5 rb.height //12 rb.incrementBy(5) rb.width //10 rb.height //17