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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Eric Chang
Eric Chang
2,133 Points
Posted by Eric Chang
Eric Chang
2,133 Points

How do I return both language and greeting as a tuple?

How do I return both language and greeting as a tuple? Should I create another variable that include both language and greeting in the function?

tuples.swift 
func greeting(#person: String) -> (language: String, greeting: String) {
    let language = "English"
    let greeting = "Hello \(person)"
    var greetingInEnglish = ("English", "Hello \(person))

    return greetingInEnglish
}

let (language, greeting) = greeting(person: Jason)

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

You don't need to create a new variable to hold the tuple. The fuction could look like:

func greeting(person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}

The order in which you return the two variables is critical - it must be greeting first then language.

The function can be called in the usua way, and its returned value stored in a variable:

var result = greeting("Tom")

I hope that helps.

Steve.

Eric Chang
Eric Chang
2,133 Points
Eric Chang
Eric Chang
2,133 Points

Thanks a lot!

Steve Hunter
Steve Hunter
57,712 Points

No problem - glad to help! :-)