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 Functions Function Return Types

Posted by ramazan yildiz
ramazan yildiz
524 Points

This?

func greeting (person: String) -> String { return person }

println("Hello (greeting("Tom"))")

1 Answer

Brendan Whiting
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,736 Points
Brendan Whiting
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,736 Points

They want you to use string interpolation inside the greeting function, and to build it so that it doesn't just send the person variable straight back, but constructs a greeting out of that person variable.

func greeting(person: String) -> String {
    return "Hello \(person)"
}