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Claudio Candido Domingos Lopes Junior
880 PointsHi, I've tried all I could but got stuck. Please help me with the answer to this quiz
init(red: Double, green: Double, blue: Double, alpha: Double, description: String) { self.red = 20.8 self.green = 22.3 self.blue = 43.1 self.alpha = 22.9 self.description = "red:(red), green:(green), blue:(blue), alpha:(alpha)" }
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
// Add your code below
}
3 Answers
Sonia Feldman
3,873 PointsHi Claudio,
In your code, you are currently setting the self values to constant Doubles. The struct should be able to return any set of Double values, not just 20.8, 22.3 etc.
To make the code flexible, you need to assign the stored color properties (self.red, self. green etc) to the color values passed in by the initializer method (red, green etc).
The proper code looks like this.
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
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)"
}
}
James Knight
4,680 Pointsstruct RGBColor { let red: Double let green: Double let blue: Double let alpha: Double
let description: String
init(red: Double, green: Double, blue: Double, alpha: Double, description: String) {
self.red = 20.8
self.green = 22.3
self.blue = 43.1
self.alpha = 22.9
self.description = "red:(red), green:(green), blue:(blue), alpha:(alpha)"
}
}
// I hope this helps, James
Claudio Candido Domingos Lopes Junior
880 PointsHi James,
Thanks for your prompt response. I've tried your suggestion and something very similar as shown below and unfortunately both of them didn't work.
init(red: Double, green: Double, blue: Double, alpha: Double, description: String) { self.red = 20.8 self.green = 22.3 self.blue = 43.1 self.alpha = 22.9 self.description = "red: (red), green: (green), blue: (blue), alpha: (alpha)" }
James Knight
4,680 Pointsimport UIKit
struct RGBColor { let red: Double let green: Double let blue: Double let alpha: Double
let description: String
init(red: Double, green: Double, blue: Double, alpha: Double, description: String) { self.red = 20.8 self.green = 22.3 self.blue = 43.1 self.alpha = 22.9 self.description = "red:(red), green:(green), blue:(blue), alpha:(alpha)" } }
//Seems strange no errors are produced when compiled
Claudio Candido Domingos Lopes Junior
880 PointsClaudio Candido Domingos Lopes Junior
880 PointsThanks Sonia. You're 100% right