What is functional programming in Python?

What is functional programming in Python?

Functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions. In Python, it emphasizes the use of functions as first-class citizens, meaning they can be passed around as arguments, returned from other functions, and assigned to variables.

Can you give me an example of a higher-order function?

Sure! A higher-order function is a function that takes another function as an argument or returns a function as a result. For example, the map() function in Python applies a given function to all items in an iterable.

How do I use the filter() function?

The filter() function creates an iterator from elements of an iterable for which a function returns true. For example, filter(lambda x: x > 0, [-1, 0, 1, 2]) will return an iterator with the values 1 and 2.

What are some benefits of using functional programming?

Some benefits include improved code readability, easier debugging, and the ability to create more predictable and reusable code.