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Start your free trialBenjamin Laskaris
1,177 PointsCan anyone point out what is wrong with this code?
The code that I have written matches with how the swift books and the videos have described custom initializers. I can't see any errors, but the practice problem keeps telling me to not use the memberwise initializer.
Let me know if I am missing something please.
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
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: \(self.red), green: \(self.green), blue: \(self.blue), alpha: \(self.alpha)"
}
}
2 Answers
Jason Anders
Treehouse Moderator 145,860 PointsHey Benjamin,
You're on the right track, and the error is a bit vague, but what it is talking about is the description
. You don't put that into the init parameters. Instead, you use the one by default in the Struct. So, you just need to remove the parameter in the init and the rest is all good.
init(red: Double, green: Double, blue: Double, alpha: Double)
Keep Coding! :)
tipi99
3,019 PointsStill code can not be compiled in workspace...(but it compiles in XCode!) What is wrong?
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
let description: String
// Add your code below
init () {
self.red = 86.0
self.green = 191.0
self.blue = 131.0
self.alpha = 1.0
self.description = "red: \(self.red), green: \(self.green), blue: \(self.blue), alpha: \(self.alpha)"
}
}
Gavin Hobbs
5,205 Points@JasonAnders said to just remove the description parameter in the init
function. So it should look like this...
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)"
}
}
Notice that there are still the red, green, blue, and alpha parameters in the initializer function. Only the description: String
was removed.
Benjamin Laskaris
1,177 PointsBenjamin Laskaris
1,177 PointsAh, I see now. Thank you!
jenko
8,562 Pointsjenko
8,562 PointsThis was very helpful, thanks!