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iOS Swift Functions and Optionals Functions Function Return Types

John Stephanites
John Stephanites
2,007 Points
Posted by John Stephanites
John Stephanites
2,007 Points

Function Return Types

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

This is what I have and I just can't figure it out so please help!

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

3 Answers

John Stephanites
John Stephanites
2,007 Points
John Stephanites
John Stephanites
2,007 Points

This is what ended up working for me.

fund greeting(personName: String) -> String { let greeting = "Hello, " + personName return greeting }

Jason Safdie
Jason Safdie
3,461 Points
Jason Safdie
Jason Safdie
3,461 Points

First, tell the function to return a type String. Next, replace the println statement with a return statement and drop the parentheses. Finally, hop outside the function and call it while passing the String "Tom" inside. Hope that clears it up.

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