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iOS Swift Enums and Structs Enums Enum Members and Raw Values

William Bergstein
William Bergstein
2,078 Points

I don't understand this.

I tried to first create var turtleSpeed = Speed(rawValue: 10) but it said that the variable was expected to be an Int. So I tried to do an if let statement to unwind the optional, but I realized that wasn't going to make it an Int. I don't understand why it expects an Int and how do I get it to be an Int?

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

let turtleSpeed = Speed(rawValue: 10)!

1 Answer

Hi William, yo need to assign Speed.Slow.rawValue to a constant turtleSeed, not Speed(rawValue: 10)!

This is correct code

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

var turtleSpeed = Speed.Slow.rawValue