30-seconds-of-code/snippets/similarity.md

title, tags

title	tags
similarity	list,beginner

Returns a list of elements that exist in both lists.

Use list comprehension on a to only keep values contained in both lists.

def similarity(a, b):
  return [item for item in a if item in b]

similarity([1, 2, 3], [1, 2, 4]) # [1, 2]