When should I use deep copy vs shallow copy?

What’s the difference between deep copy and shallow copy?

A shallow copy creates a new object but inserts references into it to the objects found in the original. A deep copy creates a new object and recursively copies all objects found in the original.

When should I use a deep copy?

Use a deep copy when you need to duplicate an object and all of its nested objects, ensuring that changes to the copy do not affect the original.

Are there any performance considerations?

Yes, deep copies can be more resource-intensive and slower than shallow copies, especially for large objects with many nested structures.

Can you give me an example of when to use each?

Sure! Use a shallow copy for simple objects or when you want to share nested objects. Use a deep copy for complex objects where you need complete independence.