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iOS Swift Enums and Structs Enums Enum Members and Raw Values

Zachary Goforth
Zachary Goforth
748 Points
Posted by Zachary Goforth
Zachary Goforth
748 Points

How do I pass Challenge Task 2 of Enums and Structs?

I put in the code below and received this error...

error: use of unresolved identifier 'Slow' var turtleSpeed = Slow.rawValue ^

What do I need to change?

enum.swift 
enum Speed: Int {
    case Slow = 10 
    case Medium = 50 
    case Fast = 100
}

var turtleSpeed = Slow.rawValue

3 Answers

Steve Hunter
Steve Hunter
57,712 Points

You need to tell it which enum Slow is part of:

var turtleSpeed = Speed.Slow.rawValue

Hope that helps!

Steve.

Steve Hunter
Steve Hunter
57,712 Points

No problem! Glad to help!

Steve.

Joshua Vargas
Joshua Vargas
3,162 Points
Joshua Vargas
Joshua Vargas
3,162 Points

When you're declaring your turtleSpeed variable, and you set it to Slow.rawValue, the computer doesn't know that it's of type Speed. It's basically saying, you're asking for the rawValue of Slow, but, what is Slow? Well, Slow is a Speed. So, we can write this as Speed.Slow.rawValue in order to let the computer know that you're talking about the type Speed.

As Steve replied before me,

var turtleSpeed = Speed.Slow.rawValue

I hope the explanation makes sense and helps.

Kamran Ismayilov
Kamran Ismayilov
5,753 Points
Kamran Ismayilov
Kamran Ismayilov
5,753 Points

var Guys I'm little bit confused, what then this means ?

var turtleSpeed = Speed(rawValue: 10)

This is what came to my mind at first when I read the instructions