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Start your free trialTyler Dotson
Courses Plus Student 1,740 Pointswhy doesn't this work?
i followed the example from the video and i dont understand why its wrong.
enum Compass: Int {
case north = 3
case south = 4
case east = 5
case west = 6
}
if let direction = Comapass(rawValue: south) else {
return nil
}
2 Answers
Steve Hunter
57,712 PointsIf you change Comapass
to Compass
that's a start
You can chase the errors down by using the Preview button.
You don't need an if let
just use let
. Then use the rawValue
associated with south
- that's 4
.
That gives you:
enum Compass: Int {
case north = 3
case south = 4
case east = 5
case west = 6
}
let direction = Compass(rawValue: 4)
Make sense?
Steve.
clintbarron
11,943 PointsAs Steve says, you don't need to use an "if let", just use "let". Also remember that the raw value is the value AFTER the equals sign, not after "case". Hence the raw value for south is "4", not "south". Therefore, as Steve says, your constant should be declared as:
let direction = Compass(rawValue: 4)