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iOS Enumerations and Optionals in Swift Objects and Optionals Enums with Raw Values

Posted by Nev Wood
Nev Wood
Courses Plus Student 5,793 Points

What does "using a raw value with Compass' initializer method" mean in this challenge?

The below code works fine in swift playground and returns the enum rawValue for the enum case south:-

enum Compass: Int { case north = 10 case south = 20 case east = 30 case west = 40 }

let direction = Compass.south.rawValue

Is there a bug in the challenge or is it the use of the use of the Compass' initializer method that causes the challenge to fail? Not really sure I understand exactly what an enums initializer method actually means in plain English.

enums.swift 
enum Compass: Int {
    case north = 10
  case south = 20
  case east = 30
  case west = 40
}

let direction = Compass.south.rawValue

2 Answers

Magnus Hållberg
Magnus Hållberg
17,232 Points
Magnus Hållberg
Magnus Hållberg
17,232 Points

The contest say you should use the rawValue initializer, so it should look something like this. let direction = Compass(rawValue: 20)

Nev Wood
PLUS
Nev Wood
Courses Plus Student 5,793 Points
Nev Wood
Nev Wood
Courses Plus Student 5,793 Points

seemed to work though the challenge mentions assigning Compass.south. Oh well passed the challenge so onwards and upwards. thanks for the help.