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 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.