Ask HN: Best resources for learning back end JavaScript?

I'm starting a new job in a couple weeks that is much more javascript heavy on the backend than I'm used to and I want to play around a little bit with the tech I'll be using before my start date.

So I'm really just looking for recommendations on resources. For whatever reason, simply googling "how to get started with backend javascript" is much less helpful "how to learn python/k8s/docker/whatever".

Just looking for good websites & books for learning modern backend javascript development.

Also, obviously, any recommendations on a good repl and ide or anything else to increase my developer experience would be delightful as well.

Thanks!