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Eric Mentele
7,325 PointsWhy won't width allow points to be added?
It keeps saying that I need to add points to width within the method. This is what I have right now:
func incrementBy(points: Double) -> (width: Double, height: Double) {
return (width + points, height + points) }
class Button {
var width: Double
var height: Double
init(width:Double, height:Double){
self.width = width
self.height = height
}
func incrementBy(points: Double) -> (width: Double, height: Double) {
return (width + points, height + points)
}
}
2 Answers
Ben Goertz
3,411 PointsI tried your code in a Swift Playground and it works, so I think this is just an example of Treehouse preferring a specific answer to pass the quiz.
I was able to complete the quiz by not returning the values, but instead mimicking what we saw in the previous video. Following Amit's example, I simply updated the values by adding points to the existing stored values. So width = width + points.
Both solutions work in the Swift Playground, but their automated grading system prefers this solution.
Hope that helps!
Eric Mentele
7,325 PointsThank you! I was not sure that this question posted. I figured that out after re-watching the video. Realized I was creating new values only relevant to the function rather than changing the class's properties values. This was my answer:
func incrementBy(points: Double) {
width += points
height += points
}
Ben Goertz
3,411 PointsAwesome! Glad that worked. Great shorthand with the += operator!