There's a bunch of stuff here even folk with a few years may not know. See the generators section at https://github.com/getify/You-Dont-Know-JS/blob/master/async...

Learning JS is very different from other languages in that there's greater amounts of misinformation (lots of people know it, but prefer to use it as little as possible), and it changes faster. For example, in 2015:

- you won't find any Python new articles that tell you to use Python 1's 'strings' module

- You'll still see things like <script> tag soup, 'JS isn't object oriented', globals and patchable-ES3-isms in new JS articles.

Kyle Simpson is a well known JS speaker and O Reilly author - his books are a great source of current best practice.

I've read the book and even contributed a tiny tiny bit with issues in GH (the book is managed through GH). While I didn't learn much I did gain perspective about things so I'd say reading it was definitely worth my time.

Didn't read the whole thing yet :). But glancing through it it seems that I really have some stuff to learn about Javascript internals.