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iOS Object-Oriented Swift Complex Data Structures Custom Initializers

Posted by Nila Palmo Ram
Nila Palmo Ram
4,303 Points

Can't understand!!!

I've tried all the possible ways of solving this question, but none of then seems to be right!! can someone please tell me if is it a mistake i've did or a bug in the code challenge.

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: String = ["red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"]
    }

}
var myColor = RGBColor(red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0)
myColor.description

1 Answer

Magnus Hållberg
Magnus Hållberg
17,232 Points

The problem is in the description string inside the init method, you have put it inside square braces like you would do with an array so delete the square braces. You have also "re specified" the type of the description constant inside the init method, that's already done when declaring it so delete that as well. The challenge never tell you to declare the myColor variable, delete that to.

  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)"
  }

That should do it, hope it helps.

Nila Palmo Ram
Nila Palmo Ram
4,303 Points

Thank you!!!