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iOS Swift Enums and Structs Enums and their Methods Initializer

Posted by Mohammad Usman
Mohammad Usman
1,856 Points

init in Swift

enum Coin: Int { case Penny = 1, Nickel = 5, Dime = 10, Quarter = 25 init() { // self Quarter self.Quarter }

func isGreater(currentValue: Coin, newValue: Coin) -> Bool {
    return currentValue.rawValue > newValue.rawValue
}

}

enum.swift 
enum Coin: Int {
    case Penny = 1, Nickel = 5, Dime = 10, Quarter = 25 
    init() {
        Quarter = 25
    }

    func isGreater(currentValue: Coin, newValue: Coin) -> Bool {
        return currentValue.rawValue > newValue.rawValue
    }
}

1 Answer

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Hi @Mohammad Usman!

You initialize the value like this: self = .Quarter because you access enum values using the dot notation Coin.Quarter but since the compiler knows that you're referring to the Coin enum you can omit the Coin part.

enum Coin: Int {
    case Penny = 1, Nickel = 5, Dime = 10, Quarter = 25 

    init() {
      self = .Quarter 
    }

    func isGreater(currentValue: Coin, newValue: Coin) -> Bool {
        return currentValue.rawValue > newValue.rawValue
    }
}