boolean - In JavaScript, why is "0" equal to false, but when tested by 'if' it is not false by itself?

Question

The following shows that "0" is false in Javascript:

>>> "0" == false
true

>>> false == "0"
true

So why does the following print "ha"?

>>> if ("0") console.log("ha")
ha

Answer 1

Tables displaying the issue:

and ==

Moral of the story use ===

table generation credit: https://github.com/dorey/JavaScript-Equality-Table