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iOS Swift Functions and Optionals Functions Function Return Types

Posted by Marco Garduño
Marco Garduño
1,549 Points

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

help

returns.swift 
func greeting(person: String) {
    println("Hello \(person)")
}
greeting("Tom")

2 Answers

jcorum
jcorum
71,816 Points
jcorum
jcorum
71,816 Points

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)"
}
jcorum
jcorum
71,816 Points
jcorum
jcorum
71,816 Points

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")
print(greeting("Tom"))