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Jon Schenck
2,028 PointsHelp me understand
What is the correct code and why?
class Button {
var width: Double
var height: Double
init(width:Double, height:Double){
self.width = width
self.height = height
}
func incrementBy(points: Int) {
}
}
1 Answer
Chase Marchione
155,055 PointsHi Jon,
The challenge wants us to add the points parameter (or, really, the value of that variable) to the current values of width and height.
1) We'll want the points parameter to be of type Double, because width and height are both of type Double. 2) Now we can add 'points' to width and height. Instead of typing out, for example, 'width = width + points', I'll use the assignment operator += and type 'width += points', which means the same thing programmatically.
func incrementBy(points: Double) {
width += points
height += points
}
Hope this helps!
Jon Schenck
2,028 PointsJon Schenck
2,028 PointsGot it! Thanks for the help.