What are higher-order functions in Python?

What are higher-order functions in Python?

Higher-order functions are functions that can take other functions as arguments or return them as results.

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

Sure! A common example is the map() function, which applies a function to all items in an iterable.

How does the map() function work?

The map() function takes two arguments: a function and an iterable. It applies the function to each item in the iterable and returns a map object.

Can you show me a code example?

Of course! Here's a simple example:

def square(x):
    return x * x

numbers = [1, 2, 3, 4]
result = map(square, numbers)
print(list(result))  # Output: [1, 4, 9, 16]