Create a variable called turtleSpeed and assign it the Raw value of the member Slow.

Question

Create a variable called turtleSpeed and assign it the Raw value of the member Slow.
```enum.swift
enum Speed: Int{
    case Slow = 10, Medium = 50, Fast = 100
}
 let turtleSpeed = Speed(rawValue:10)
```

Martin Wildfeuer · Accepted Answer

Your code inits a Speed enum with a raw value of 10, which results in Speed.Slow.
Therefore 
swift
 let turtleSpeed = Speed(rawValue:10)

is equivalent to
swift
// Please note that initializing an enum with a
// raw value returns an optional, as the corresponding
// enum member might not exist, e.g. Speed(rawValue:11)
let turtleSpeed: Speed? = Speed.Slow // .Slow

The solution for this assignment basically asks you to do it the other way round, that is assigning the raw value of the enum member Slow to the constant turtleSpeed as follows
swift
let turtleSpeed = Speed.Slow.rawValue

This is equivalent to
swift
let turtleSpeed: Int = 10

Hope that helps :)

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Munir Niaz

Munir Niaz

Create a variable called turtleSpeed and assign it the Raw value of the member Slow.

1 Answer

Martin Wildfeuer

Martin Wildfeuer