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

What is wrong with my code?

I cant seem to get it right

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

1 Answer

Your return type and argument type is wrong. A string in Swift is String not Str. Also, you do not need need parenthesis in your return statement:

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