List similarity

Python, List · Nov 2, 2020

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]

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  • Returns every element that exists in any of the two lists once, after applying the provided function to each element of both.

  • List intersection

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    Returns a list of elements that exist in both lists.