What are some common mistakes when using iterators in programming?

What are some common mistakes when using iterators in programming?

Some common mistakes include not properly handling the end of the iterator, modifying the collection while iterating, and forgetting to reset the iterator.

Can you explain why modifying the collection is a problem?

Modifying the collection while iterating can lead to unexpected behavior, such as skipping elements or encountering errors.

What should I do instead?

Instead, create a copy of the collection or collect the items to be modified in a separate list and apply changes after the iteration.

Are there any best practices for using iterators?

Yes, always check for the end of the iterator, avoid side effects, and consider using built-in functions that handle iteration safely.