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

enum with .self challenge - ideas for possible equations/conditions

So I successfully completed the task but I wanted to continue the code.

import UIKit


// Task 1/1
// 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.


/* old code

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

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

// new code

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

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

How would I write a calculation or finish this code off? I used "var result = Coin.Dime" and it returns an "(enum value)" in the playground output. We can't do anything else with this? And...since this is a Bool I thought it's supposed to return true / false etc? But then the Bool needs to be converted to an Int no?

1 Answer

what about this for outputting results?

// option

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

func isGreater(newValue: Coin)  -> Bool {
    if (self.rawValue > newValue.rawValue){
        return "Current number is greater than new number"
    } else {
        return "New number is greater than current number"

    }

}