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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Mia Pivirotto
Mia Pivirotto
5,557 Points
Posted by Mia Pivirotto
Mia Pivirotto
5,557 Points

Cannot figure out that logic behind this challenge.

I feel like I understand Tuples, but I do NOT understand why you would assign a Tuple to a greeting variable, where the second part would be saying what language it's in. And because I can't understand it, I cannot figure out the challenge answer. Can someone enlighten me?

"Create a variable named result and assign it the tuple returned from function greeting. (Note: pass the string "Tom" to the greeting function.)"

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

    var result = ("\(greeting) \(person)", language)


    return (greeting, language)
}

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Hi, Mia, you need to create the variable result outside of function definition like this

Note: pass the string "Tom" to the greeting function.

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

    return (greeting, language)
}

var result = greeting("Tom")