When should I use iterators instead of iterables?

When should I use iterators instead of iterables?

You should use iterators when you need to traverse a collection without storing the entire collection in memory. Iterables are great for collections that you want to access multiple times.

Can you give me an example of an iterator?

Sure! A common example of an iterator is the range() function in Python, which generates numbers on the fly.

What about iterables? What are some examples?

Examples of iterables include lists, tuples, and strings. They can be looped over multiple times.

Are there performance differences between using iterators and iterables?

Yes, iterators can be more memory efficient since they generate items one at a time, while iterables load the entire collection into memory.