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iOS Swift Functions and Optionals Optionals What is an Optional?

Posted by Cristian Blas
Cristian Blas
1,047 Points

I need help

I think this is right but some how is not.

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

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Cristian,

Your function is correct however your IF LET statement is malformed meaning it contains errors, these errors are:

  1. You have wrapped the named parameter name within double quotes, only the value Doc needs to be wrapped with quotes
  2. You've given your println declaration a capital P, this needs to be lowercase
  3. Finally you're attempting to print out Found: \(result), you only need to print the word Found

See the below.

if let result = search(name: "Doc") {
  println("Found")
}

Happy coding!