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iOS Object-Oriented Swift 2.0 Complex Data Structures Custom Initializers

why my code doesn't work, i think this should be work

my code doesnt work why?

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, desc : String) {
    self.red = red
    self.green = green
    self.blue = blue
    self.alpha = alpha
    self.description = "red: \(self.red), green: \(self.green), blue: \(self.blue), alpha: \(self.alpha)"
    }

}

2 Answers

David Papandrew
David Papandrew
8,386 Points

You need to remove the "desc" parameter from the init method. The description string is derived from the red, green, blue and alpha parameters rather than passed as an argument.

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

ok, I just did Thankyou