In Javascript, why is [1, 2] == [1, 2] or ({a : 1}) == ({a : 1}) false? [duplicate]

Answer 1

You are comparing different objects.

>>> var a = [1,2] var b = [1,2]
>>> a == b
false
>>> a == a
true

If you want to test array equality you might want to use some library or just write the test yourself.