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iOS Swift Enums and Structs Enums and their Methods Initializer

Editor not recognizing added text. Problem was intermittent yesterday. Today editor thinks no text is entered

Occasionally yesterday the editor would not recognize the text I had entered. The error output would be clear in the fact that the error mentioned did not match the current text.

Today it was out of sync but reloading the page and starting over has made it worse. Now no text is recognized....

I would just like a strategy like "clearing the cache" but don't really want to wipe things out that might also be necessary to keeping track of where I am in the course, etc.

enum.swift
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
    }
}