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iOS Swift Functions and Optionals Functions Function Return Types

Please help me with this code challenge

I don't know how to accomplish this code task. Could you please help me?

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

2 Answers

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


Modify the definition of the function named greeting to return a String and replace the println statement with a return statement. The function should return a greeting. For example, if you pass in a string "Tom" then the return string would be: "Hello Tom".