Sometimes I see some memes regarding Javascript equality and yeah, some of them are pretty funny, here is my favorite.

I see that there is a common pattern, this "weird" behavior always happens with the double equal sign operator == which we can call loose equality. This happens because it perfoms the IsLooselyEqual algorithm, and the Javascript engine will perform a typer cohertion to try to match both sides in type and value.

How can avoid these "weird" behavior?

Well when you use the triple equal operator === javascript doesn't convert at all the type of your values, and then performs a comparison and checks that both values and types, and if both are for example the same number and the same type, the result of the comparison will be 'true'.