Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Functions and Optionals Optionals What is an Optional?

About Optionals

Within the code of the example function, what is the purpose of 'tempAptNumber'?

1 Answer

Marissa Amaya
Marissa Amaya
11,782 Points

There seemed to be a lot of confusion around this code. I gave some of my insights here and here, if that helps.

Thanks for the help.