Much of the challenge in JS today is due to unnecessary packages, build systems, and workarounds found throughout blogs and forums which were reasonable 5-10 years ago but aren't really needed today. Unfortunately, LLMs tend to output old-fashioned JS.

With (almost) everyone using an up-to-date standards-compliant browser, you can sidestep most of the complexity and weirdness by just using the standard library and ES Modules (instead of frameworks, libraries, build systems etc.) and an IDE with good intellisense + inline documentation lookup.

MDN documentation is good and up to date overall, but I'm not sure there is a good overview/entry point resource that is up to date as of today... maybe I'll have to write it!