What are some common iterator errors in programming?

What are some common iterator errors in programming?

Common iterator errors include off-by-one errors, modifying a collection while iterating, and using an iterator after it has been exhausted.

Can you explain the off-by-one error?

An off-by-one error occurs when a loop iterates one time too many or too few, often due to incorrect index boundaries.

How can I avoid modifying a collection while iterating?

To avoid this, you can create a copy of the collection or use a different approach, like collecting items to remove in a separate list.

What happens if I use an iterator after it has been exhausted?

Using an exhausted iterator will typically result in no output or an error, as it has no more elements to return.