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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Li Lin
Li Lin
5,007 Points
Posted by Li Lin
Li Lin
5,007 Points

How am I not returning the greetings function to result?

On the Tuples 2/3 Challenge, I have:

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

I keep getting an error saying I have to get the greetings functions to result.

Anybody can shed any light on this? Thanks

2 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

first, your greeting function is not correct. you have this right now:

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

you are returning (greeting, person) instead of greeting language (which you have assigned to result). I would remove the result variable and just return the tuple like so:

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

then you need to call the greeting function with "Tom" as an argument and assign the return value of that to a variable called result. 

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

var result = greeting("Tom")
Li Lin
Li Lin
5,007 Points
Li Lin
Li Lin
5,007 Points

thanks for the explanation Stone!