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iOS Object-Oriented Swift 2.0 Complex Data Structures Custom Initializers

Rohan Thakar
Rohan Thakar
1,579 Points
Posted by Rohan Thakar
Rohan Thakar
1,579 Points

Hi Im unable to understand the question. pls help me out with it. i did the code from what i understood

i tried it on playgrounds an error comes stating cannot used red as an instance variable.

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

1 Answer

Jeremy Stewart
Jeremy Stewart
1,545 Points
Jeremy Stewart
Jeremy Stewart
1,545 Points

Hey Rohan,

A few errors here.

1) The description needs to be added before the initializer. So let description = String 2) Now you need to call on the initializer and format this a little differently than you have: self.description = ("red: (self.red), green: (self.green), blue: (self.blue), alpha: (self.alpha)")