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iOS Object-Oriented Swift Complex Data Structures Custom Initializers

Posted by Hojung Kim
Hojung Kim
878 Points

I've come up with the following code for the challenge... and I have no idea why it's incorrect.

init(description: String) { red = 86.0 green = 191.0 blue = 131.0 alpha = 1.0

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

Is it a syntax error?

structs.swift 
struct RGBColor {
  let red: Double
  let green: Double
  let blue: Double
  let alpha: Double

  let description: String

  // Add your code below
  init(description: String) {
    red = 86.0
    green = 191.0
    blue = 131.0
    alpha = 1.0

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

1 Answer

ceriannejackson
ceriannejackson
23,759 Points
ceriannejackson
ceriannejackson
23,759 Points

You want to initialise it with the values of red, green, blue and alpha and you also need to use self to assign the values passed in to the struct

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)"
}

I hope that helps :)

Hojung Kim
Hojung Kim
878 Points

Thanks so much! I was very confused about this concept