Did you know what the CaseIterable protocol does in Swift programming? Well... It allows you to easily obtain a collection of all the cases defined within an enum. It automatically generates a static property called allCases for the conforming enum, which is an array containing all the cases in the order they are defined. This is particularly useful when you need to work with all the cases of an enum.
import Foundation
enum Direction: CaseIterable {
case north
case south
case east
case west
}
let directions = Direction.allCases
for direction in directions {
print(direction)
}