Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Shelby Larson
Shelby Larson
33,317 Points

Methods or Member Functions code challenge

I have no clue how to remove the currentValue and replace it with self.

The question is: 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.

My code:

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

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

}

1 Answer

Burak Boysan
Burak Boysan
1,205 Points
Burak Boysan
Burak Boysan
1,205 Points

You should erase the currentValue in function input (delete currentValue: Coin,) and also you should change currentValue.rawvalue with self.rawvalue.

Shelby Larson
Shelby Larson
33,317 Points

Thank you!! It worked!