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![Zachary Dorcinville](https://secure.gravatar.com/avatar/21f20c534c8164965fd41775985685cb?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Zachary Dorcinville
1,659 PointsI am not sure how to add "points" to the "incrementBy" method?
I'm unsure on how to add the points parameter to the width property
class Button {
var width: Double
var height: Double
init(width:Double, height:Double){
self.width = width
self.height = height
}
func incrementBy(points: Double) {
}
}
1 Answer
![Zack Richard](https://secure.gravatar.com/avatar/27593cc37f27d12c23afc0ad21976daf?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Zack Richard
6,313 PointsHi Zachary,
The trick is to assign the points parameter to both data members inside the body of the incrementBy method:
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
}
}