check if element of one list exists in another list python code example

Example 1: how to check if any item in list is in anoter list

# checking all elements of list_B in list_A
list_A = [1, 2, 3, 4]
list_B = [2, 3]

check = any(item in list_A for item in list_B)

print(check)
# True

Example 2: check if a list contains any item from another list python

## using set
list_A = [1, 2, 3, 4]
list_B = [5,1]

set_A = set(list_A)
set_B = set(list_B)

output = False if (set_A.intersection(set_B) == set()) else True
print(output)
# True if there is any element same
# False if there is no element same