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Start your free trialPino Gatto
2,463 PointsObject-Orient Swift last task Help - Can't figure out what I'm doing wrong
Getting this error swift_lint.swift:23:30: error: cannot use instance member 'red' within property initializer; property initializers run before 'self' is available
struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double
// 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
}
let description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"
}
2 Answers
tromben98
13,273 PointsHi Pino!
You probably removed the description property unintentionally, because when you start the challenge it starts with a description property in the struct.
Here is the solution:
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)")
}
}
Best regards, Jonas
Pino Gatto
2,463 PointsAhhh, yes I see what I did...
Instead of moving the description variable after the init, I was simply supposed to self.description.
What i don't understand, and my confusion came from the fact that the description variable was set as a constant (let) meaning I couldn't change it.
Does the init method allow for changing let variables in an object?