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iOS Swift Enums and Structs Enums and their Methods Methods or Member Functions

Ricardo Gonzalez
Ricardo Gonzalez
2,286 Points

Idk how to do this challenge and need help on how to get isGreater Function to only have one parameter.

Im Confused

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

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

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points

Hello Ricardo: This is an easy one, I know I know, you are learning and it will get easier for you as you go. Trust me, I was there !

So here let me try to help you

Challenge says : Modify the isGreater function to only accept one parameter. Keep the newValue parameter and remove the currentValue parameter because you can retrieve the existing value using the keyword self

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

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

This is how it looks:

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

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