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iOS Swift Functions and Optionals Optionals What is an Optional?

Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points
Posted by Edwin Mhoy Silva Rifa
Edwin Mhoy Silva Rifa
2,631 Points

Having proplems with the optionals assignment

Using the if-let statment, assign the value from the search function to a constant named result. If the name was found, use println to print out the string "Found". When calling the search function, pass it the name "Doc"

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 search = names {
 println("Found\")}

 search("Doc")

1 Answer

Wayne Knoesen
Wayne Knoesen
9,435 Points
Wayne Knoesen
Wayne Knoesen
9,435 Points

Ok so first: You are mixing the if let and the search function.

The task requires a constant called "result". So first we make the constant then we say that its equal to the search function if we pass in the word "Doc"

So I believe you are trying to write this

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