filter() — Intermediate Playground

Returns elements from an iterable for which a function returns True

Python Playground

# filter() with None
values = [0, 1, "", "hello", None, [], [1]]
print(list(filter(None, values)))

# Chaining filter and map
nums = range(20)
result = list(map(lambda x: x**2, filter(lambda x: x % 3 == 0, nums)))
print(result)

Output

Click "Run" to execute your code

filter() supports additional parameters that modify its behavior.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

View all Intermediate examples for filter()