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iOS Object-Oriented Swift Complex Data Structures Custom Initializers

In the editor, I’ve declared a struct named RGBColor that models a color object in the RGB space.

Your task is to write a custom initializer method for the object. Using the initializer assign values to the first four properties. Using the values assigned to those properties create a value for the description property that is a string representation of the color object.

For example, given the values 86.0 for red, 191.0 for green, 131.0 for blue and 1.0 for alpha, each of the stored properties should hold these values and the description property should look like this:

"red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0"

Note: Init methods typically list parameters in the same order of property declaration. For this task, stick to the order red,green,blue,alpha.

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)"

3 Answers

You are missing a closing bracket for the struct

where im stuck

Not sure what you are saying. You need two here at the end:

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