Why says im using the memberwise initializer?

Hi Michael,

To answer your questions: 1) You could setup the RGB initializer to take a description argument and setup the initializer to set the passed value to the description property, BUT you already have all the strings necessary to construct the description string from the color values. So why not let the code do the "heavy lifting" and generate the description string using the other parameters? It streamlines the code and you only need to capture the essential inputs via a limited set of function parameters.

2) You can call the new RGB object whatever you want. I sometimes call things "my<Whatever>" when I muck around with a Swift playground.

Hope that helps.

Hi Michael,

Since the description property will be derived from the other 4 properties, you won't need the description text to be part of the init parameters.

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)"
  }
}

Now if you want to obtain see description you could do something like this:

let myRGB = RGBColor(red: 33.3, green: 77.7, blue: 13.13, alpha: 23.23)
print(myRGB.description)