Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Functions and Optionals Parameters and Tuples Tuples

Alexandre Perron
Alexandre Perron
4,410 Points
Posted by Alexandre Perron
Alexandre Perron
4,410 Points

Code Challenge: Tuples

Hello ! I need help with the following: "Create a variable named result and assign it the tuple returned from function greeting. (Note: pass the string "Tom" to the greeting function.)"

What does this question refer to and mean? Am I on the right track? Thanks!

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

    return (language, greeting)
}

var result = greeting(person: "Tom")

1 Answer

Jonas Kristensen
Jonas Kristensen
2,738 Points
Jonas Kristensen
Jonas Kristensen
2,738 Points 
func greeting(#person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}
var result = greeting(person: "Tom")
Jonas Kristensen
Jonas Kristensen
2,738 Points

You need to add # before person. As i remember it, its called a external parameter but im actually not sure.