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

Jonathan Teague
Jonathan Teague
1,949 Points
Posted by Jonathan Teague
Jonathan Teague
1,949 Points

Getting "Expected Declaration" error

I am getting an expected declaration error for description. I'm unsure why this is the case. Does it need to be created outside of the struct? Any help would be appreciated.

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
  }

  description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
}

1 Answer

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

You need to initialize the description

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)")

  }
}
Jonathan Teague
Jonathan Teague
1,949 Points
Jonathan Teague
Jonathan Teague
1,949 Points

Thank you for the help! I think I was just misreading the question.