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Start your free trialMackenzie Milroy
3,162 PointsI am still stuck on this initalizer method can someone please walk me through this and explain each step
Its asking me to use sting interpolation and i was given the help: The problem is that you hardcode the values although in this task you should assing values using the initializer. I probably should say that you do it on an instance. It looks like this (lets assume this struct has 2 parameters, first of type Double and the second one of type Bool). But I tried to fix and It still wasn't passing. Also it doesn't pass the challenge if I change the constants to variables.
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: 86.0) \(green: 191.0) \(blue:131.0) \(alpha: 1.0)"
return(description)
}
2 Answers
lvwdhydynw
6,443 PointsHi Mackenzie!
First: the code challenge doesn't say you have to return the description, so don't do it
Second: apart from the fact you still hard-code it, this won't work.
- get rid of those numbers there (that's where you are hard-coding)
- the description should look like this: "red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0", however, your will look like this: "86.0 191.0 131.0 1.0". Add the names of colours and "," in the description
- once you are done, try to create an instance of this struct and give it these numbers as parameters. If it look like what it should like, you've done it! :)
Andrea Miotto
iOS Development Techdegree Graduate 23,357 PointsYou are doing wrong some things, this is the correct way:
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)"
}
You were missing one brackets, you were doing wrong the string interpolation in the description property, and you shouldn't return any value.