Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Mohamed Almulla
2,506 PointsHow should I construct my description property?
The Hint is telling me to use string interplotation which I'm already using. Can someone explain where the real mistake is?
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
}
description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
}
1 Answer

Magnus Hållberg
17,232 PointsThe description string interpolation should be inside the init method and “marked” with self. Aside form that it’s correct.