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iOS Object-Oriented Swift 2.0 Complex Data Structures Custom Initializers

Paul Lavier
Paul Lavier
1,081 Points
Posted by Paul Lavier
Paul Lavier
1,081 Points

The check work function does not seem to recognize my init method. Could it be missing it or am I making some huge error

I entered a init that seem to work in the playground but it does not seem to be recognized by the "Check Work" function.

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

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi Paul,

You don't pass description in as a parameter. It is created inside init using the other four stored properties that you do pass in.

Make sense? 

    init(red: Double, green: Double, blue: Double, alpha: Double) {  //  no description here
        self.red = red
        self.green = green
        self.blue = blue
        self.alpha = alpha
        // create it here
        self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)" 
    }

Steve.

Paul Lavier
Paul Lavier
1,081 Points
Paul Lavier
Paul Lavier
1,081 Points

Yes. That makes sense. Thanks