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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Posted by Jonathon Best
Jonathon Best
1,588 Points

Returning Values of Functions to Variables

I'm being asked to create a variable named result that returns the tuple assigned to a function's return, but I'm still not getting it...

if the function's return is assigned as -> (greeting: String, language: String), and if I'm supposed to assign that tuple to a variable called result, shouldn't it look like this:

var result = (greeting: String, language: String)

I'm sure it's something super simple that I'm missing, but if you have any insight, let me know.

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

2 Answers

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hi Jonathon,

You've got a couple of issues with your code, but mostly, you're just over-complicating it for yourself :). Did you pass the first challenge? Your code should have looked like this:

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

    return (greeting: greeting, language: language)
}

Then, the second challenge is just asking you to assign the result of calling the greeting function you just defined in the first challenge to a variable result. You need to do this outside the function, not inside, as you've done. We won't change the function at all for this step:

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

    return (greeting: greeting, language: language)
}

var result = greeting("Tom") // see how easy that was? :)
Jonathon Best
Jonathon Best
1,588 Points

Totally cleared a lot of stuff up for me. Thanks for taking the time to answer my question!

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

No problem! Glad I could help out.

Baptiste Fehrenbach
Baptiste Fehrenbach
2,227 Points
Baptiste Fehrenbach
Baptiste Fehrenbach
2,227 Points

var result = (greeting: String, language: String) return greeting(person: "Tom") You can't declare a tuple like that, watch the video again ! And you're trying to return the result of a function... In this function ! You have to return a variable !