Javascript doesn't really have good tooling but at least if you don't like it, there are dozens of alternatives, just like in any other software space.
What I just said in the previous sentence is (NaN === NaN).
What I just said in the previous sentence is (NaN === NaN).
We just have to continue to improve the tooling.
It's a quite strange way of writing a sarcastic comment, but it does agree with you.
I assume by that you mean as per an IEEE specification.