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iOS Swift Functions and Optionals Functions Function Return Types

help , I think I am right but system says I´m wrong


func greeting(person: String) {
    println("Hello \(person)")

2 Answers

First, you need to add a return type, and second, you need to turn the print statement into a return statement:

func greeting(person: String) -> String {
    return "Hello \(person)"

P.S., you weren't asked to call the function, but you did, and did it correctly. Usually, though, you would want to do something with the return value. E.g., store it in a variable or constant, or display it:

let msg = greeting("Tom")