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iOS Object-Oriented Swift 2.0 Complex Data Structures Custom Initializers

mahi
mahi
7,137 Points

I can't figure it out after this!!

I am not able to understand what to do after this, i initialised the parameters but don't know how to assign them to the string.

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

    init(red: Double, green: Double, blue: Double, alpha: Double){
        self.red = 86.0
        self.green = 191.0
        self.blue = 131.0
        self.alpha = 1.0

  let description: String

}

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

You don't need to hard-code the values of the colors in the init. You want it to be more generic than that so that when it initializes it initializes to whatever values you pass to it. The description is simply a string built with string interpolation (which you've used successfully plenty of times before this). Take a look at my code and see if it makes more sense!

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

     description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
     }
}
mahi
mahi
7,137 Points

Thanks alot!!