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NATHAN TRAN
2,367 PointsString Interpolation
I know what I need to do but I can not figure out the set up for the string interpolation
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
// Add your code below
init (red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0) {
return "86.0 is \(red), 191.0 is \(green), 131.0 is \(blue), 1.0 is \(alpha)"
}
}
2 Answers
Jeff McDivitt
23,970 PointsYou are missing a couple components
- You never initialized the variables
- You do not need the word "is" anywhere in the return, but you need to include the labels
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
// Add your code below
init(red: Double, green: Double, blue: Double, alpha: Double) {
self.red = red
self.green = green
self.blue = blue
self.alpha = alpha
self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
}
}
let myColor = RGBColor(red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0)
NATHAN TRAN
2,367 Pointsinit(red: Double, green: Double, blue: Double, alpha: Double) { self.red = red self.green = green self.blue = blue self.alpha = alpha self.description = "red: (red), green: (green), blue: (blue), alpha: (alpha)" }
Why do we need "self.red....etc." in here?
Jeff McDivitt
23,970 PointsI would suggest that you watch the video again on initialization; also here is a resource that will assist you with your question