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iOS Object-Oriented Swift Complex Data Structures Custom Initializers

Aryaman Dhingra
Aryaman Dhingra
3,536 Points
Posted by Aryaman Dhingra
Aryaman Dhingra
3,536 Points

String interpolation in Structs not working!! Please help!

I just want some clarification on how structs and init work. And also I would like to know where I am going wrong.

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

  let description: String

  init(red: Double, green: Double, blue: Double, alpha: Double) {
    self.red = red
    self.green = green
    self.blue = blue
    self.alpha = alpha
  }

  // Add your code below
  description = "red: \(self.red), green: \(self.green), blue: \(self.blue), alpha: \(self.alpha)"
}

1 Answer

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

You need to initialize 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)")


  }
}