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iOS Swift Functions and Optionals Optionals What is an Optional?

Posted by Kieran Roberts
Kieran Roberts
8,355 Points

Pretty stuck on this one. Can somebody please show me the code so I can workout where I am going wrong, cheers.

I can follow the video okay but I can't seem to put everything in the right place.

Much appreciated.

1 Answer

Dee Greene
Dee Greene
8,508 Points
Dee Greene
Dee Greene
8,508 Points

This is what I have. Works fine for me:

func findApt (aptNumber : String) -> String? {
    let aptNumbers = ["101","202","303","404"]
    for tempAptNumber in aptNumbers {
        if ( tempAptNumber == aptNumber) {
            return aptNumber
        }
    }

    return nil
}

if let culprit = findApt("101") {

    println("Apt Found: \(culprit)")
}