Lambdas & Higher-Order Functions

map, filter, sorted with key=…

lambda creates a small anonymous function. Pair it with map, filter, or sorted to transform sequences elegantly.

nums = [1, 2, 3, 4]
print(list(map(lambda x: x * 2, nums)))     # [2, 4, 6, 8]
print(list(filter(lambda x: x % 2, nums)))  # [1, 3]

main.py

Output

Press Run to execute.

Expected output

['apple', 'banana', 'cherry']