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iOS Swift Functions and Optionals Functions Syntax and Parameters

Michael Morton
Michael Morton
4,902 Points
Posted by Michael Morton
Michael Morton
4,902 Points

How do I pass a string to a function?

Getting stuck on this challenge. How do I pass the string "Tom" to the greeting function? How do I declare the string?

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

greeting(person)

William Davis
William Davis
5,497 Points

Hello, Michael.

The code you are looking for is:

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

:)

3 Answers

William Davis
William Davis
5,497 Points

OH, right!

func greeting(person: String) {

 println("Hello \(person)")

 }

greeting("Tom")

You were missing the \ in (person) and to introduce "Tom" in the greeting :)

Michael Morton
Michael Morton
4,902 Points
Michael Morton
Michael Morton
4,902 Points

That's interesting. I haven't learned the "return" command yet or the "->" command.

Michael Morton
Michael Morton
4,902 Points
Michael Morton
Michael Morton
4,902 Points

Thanks William! That's exactly what was wrong.