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 Object-Oriented Swift Value vs Reference Types Structs vs Classes

Nicholas Arcuri
Nicholas Arcuri
11,311 Points

Why would you set a new instance of a class object to an already existing one?

Why would you set bigPhone equal to phone instead of creating a new instance? It's obviously a different phone so why would you set it to a different instance of the same class? I'm having trouble understanding the use-case and why you would have to worry about overriding the original phone.

1 Answer

Frank Novello
Frank Novello
19,299 Points

Sometimes you don't have access to the original class. Sometimes you can only interface with the class through a reference to the class.