How can I compare two lists in python and return matches

Question

I want to take two lists and find the values that appear in both.

a = [1, 2, 3, 4, 5]

b = [9, 8, 7, 6, 5]

returnMatches(a, b)

would return [5], for instance.

Answer 1

There are many ways to compare two lists in python and return their matches some of the important methods are as follows:-

a = [1, 2, 3, 4, 5]

b = [9, 8, 7, 6, 5]

set(a) & set(b)

Another method you can use is the list comprehensions if an order is significant, below is the code that shows how we use list-comprehension:-

a = [1, 2, 3, 4, 5]

b = [9, 8, 7, 6, 5]

[i for i, j in zip(a, b) if i == j] 

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