When should I use map or filter in Python?

When should I use map or filter in Python?

You should use map when you want to apply a function to every item in an iterable, and filter when you want to select items based on a condition.

Can you give me an example of using map?

Sure! If you have a list of numbers and want to square each number, you can use map like this: list(map(lambda x: x**2, numbers)).

What about filter? Can you show me that?

Absolutely! If you want to filter out even numbers from a list, you can use filter: list(filter(lambda x: x % 2 != 0, numbers)).

Are there any performance differences between them?

Yes, map can be faster for applying a function to all items, while filter is efficient for reducing the size of the iterable based on a condition.