Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Object-Oriented Swift Complex Data Structures Custom Initializers

Bob Clanfield
Bob Clanfield
2,372 Points
Posted by Bob Clanfield
Bob Clanfield
2,372 Points

This seems to work fine in Xcode? Structs in Swift...

I tried var.rgbColor among other variations, Xcode prefers _ anyway nothing seems to be correct.

structs.swift 
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: \(self.red), green: \(self.green), blue:\(self.blue), alpha:\(self.alpha)"
        _ = RGBColor  (red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0)

    }
}

2 Answers

Shade Wilson
Shade Wilson
9,002 Points
Shade Wilson
Shade Wilson
9,002 Points

Your self.description line seems correct to me. I tried it as well and couldn't pass the test, so this may be a problem with the test itself and not your code. Note though that you don't want the last line where you call _ = RGBColor within the init method. If you wanted to create an instance, that would be something you do outside the struct.

Donald Zarraonandia
Donald Zarraonandia
4,434 Points
Donald Zarraonandia
Donald Zarraonandia
4,434 Points

There is nothing wrong with the test you have two small typos.

First, Shade is right in order to create and instance you would do that outside the struct.

Second, you need to make it look exactly like the example in the answer. You are missing two spaces it should be:

self.description = "red: (self.red), green: (self.green), blue:\ (self.blue), alpha:\ (self.alpha)" notice the spaces after blue:\ and alpha:\

You have: self.description = "red: (self.red), green: (self.green), blue:(self.blue), alpha:(self.alpha)"