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iOS Object-Oriented Swift Complex Data Structures Custom Initializers

I have finished the code challenge and confirmed there is no compile error from my play ground. plz take a look.

following are my codes:

struct RGBColor { let red: Double let green: Double let blue: Double let alpha: Double

let description: String

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

} }

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

  let description: String

  // Add your code below
  init() {
   self.red = 86.0
   self.green = 191.0
   self.blue = 131.0
   self.alpha = 1.0
   self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"

  }
}

1 Answer

Hi Nick,

The numbers given in the challenge are examples, they're not to be hard-coded.

So, the user will pass their chosen values into the constructor to create a colour of their choice. You've created description correctly so that's the only adjustment that's required, I think.

So, pass the RGBA values into the constructor and assign them within the init method as you have done. Don't use actual numbers, though. Something like init(red: Double, green: Double ... - you get the idea.

Make sense?

Steve.