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

title, tags, firstSeen, lastUpdated

title	tags	firstSeen	lastUpdated
similarity	list,beginner	2019-08-20T16:12:11+03:00	2020-11-02T19:28:35+02:00

Returns a list of elements that exist in both lists.

• Use a 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]