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iOS Swift Functions and Optionals Optionals What is an Optional?

sina rahmaniyehaneh
PLUS
sina rahmaniyehaneh
Courses Plus Student 1,250 Points
Posted by sina rahmaniyehaneh
sina rahmaniyehaneh
Courses Plus Student 1,250 Points

It does not work

func search(#name: String) -> String? { let names = ["Doc","Grumpy","Happy","Sleepy","Bashful","Sneezy","Dopey"] for n in names { if n == name { return n } } return nil } if let result = search(name: "Doc") { println("Found: (result)")

}

search.swift 
func search(#name: String) -> String? {
    let names = ["Doc","Grumpy","Happy","Sleepy","Bashful","Sneezy","Dopey"]
    for n in names {
        if n == name {
            return n
        }
    }
    return nil
}
if let result = search(name: "Doc") {
    println("Found: \(result)")

}

1 Answer

Victoria Bian
Victoria Bian
4,780 Points
Victoria Bian
Victoria Bian
4,780 Points

Make sure you are doing println("Found: (result)") not println("Found: (result)")

It should work.