Solution Exercise 14: common values of two python lists

Exercise14

Write a Python program as a function that takes two lists as parameters and returns True if the two lists have at least one common element and False if not.

Solution

def commonElement(L1 , L2):
    result = False
    for x in L1:
        for y in L2:
            if x == y :
                result = True
    return result
# testing the algorithm
L1 = ["Python" ,"Java" ,"C++" ,"C#" ,"PHP" ,"NodeJS"]
L2 = ["Python" ,"Dart" ,"PHP" ,"NodeJS" , "Django" ,"Laravel" ]
L3 = ["HTML" , "CSS" , "Javascript"]
print(commonElement(L1 , L2)) # the output is : True
print(commonElement(L1 , L3)) # the output is : False