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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Bruno Fernandes
Bruno Fernandes
2,413 Points
Posted by Bruno Fernandes
Bruno Fernandes
2,413 Points

Completely stuck in Task 3

This is the first challenge that I get completely stuck, either I have to re-watch all the chapter again, or this exercise needs some more explanation. :(

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

    return (greeting, language)
}

var result = greeting(person: "Tom")
println(greeting.language)

1 Answer

Ricardo Hill-Henry
Ricardo Hill-Henry
38,442 Points

The task says to print out the value of language from the instance of greeting, "result." What you're doing is calling it on the greeting function itself. 

println(result.language)
Bruno Fernandes
Bruno Fernandes
2,413 Points
Bruno Fernandes
Bruno Fernandes
2,413 Points

And how do I do this? I still don't know it what I have to do...

Bruno Fernandes
Bruno Fernandes
2,413 Points
Bruno Fernandes
Bruno Fernandes
2,413 Points

Ok, for some reason it only worked after I inverted (language: String, greeting: String) to (greeting: String, language: String) is this something I did wrong or a bug in the simulator?

Ricardo Hill-Henry
Ricardo Hill-Henry
38,442 Points

Oh, I didn't even notice that. It may have something to with at the top you've said you want to return (language: String, greeting: String), but at the end of the function you return it in this order: (greeting, language)

Now that shouldn't affect the output of result.language, however, the challenge may have been checking all your work to make sure there weren't any other errors (which in this case there were).