Reddit mentions of Understanding ECMAScript 6: The Definitive Guide for JavaScript Developers

Here is the desktop version of your link

Understanding ecmascript 6 just came out a couple days ago print. There is an online version on GitHub (although I think it is worth the $$).

I liked reading Zakas's books, like this one: Understanding ECMAScript 6: The Definitive Guide for JavaScript Developers, and his object-oriented javascript book.

Hey, glad to hear that my two cents were of some help. Reading your addendum, it seems like you've got a pretty good plan in place, and I expect that by the time you complete the Udacity program, you'll know even better what your next steps should be. As for whether you want to do web dev or not--I guess you'll find out. :) Worst case scenario, you train up as a web dev and then use that to transition into something else. Best case scenario, you find out you love it, and then just keep learning.

I will say, to that point, that modern web development can take on any number of forms, so you'll probably find a niche that works for you. Hell, even "Front End Developer" is such a varied role right now that you could be doing some design work (if your job doesn't have a dedicated designer), working in classic HTML/CSS/JS, or doing really complex stuff with React and other frameworks.

Anyway, on to resources. Don't let any of these derail you if you're happy on your path, but keep these in mind if you need to firm up your understanding of anything along the way:

Udemy Courses (only buy if they're on sale for $10-20, because they almost always are):
The Web Developer Bootcamp by Colt Steele. This is my favorite beginner's course (and I tried a lot of them). It gives a really great overview of a whole JS-based stack and firms up a lot of the fundamentals repeatedly along the way. Also, the guy's teaching style I found to be really great. Incidentally, since you're a Python guy, he just created a similar course with a Python back end, which might get you ramped up quicker. I haven't taken this one myself, but might be worth checking out.

Git a Web Developer Job by Brad Schiff I actually just did this one myself pretty recently, after I already got my job. But I highly, highly recommend this one for helping you learn how to use some more advanced dev tools, and how to write CSS that is maintainable, easy-to-parse, and makes sense.

The Complete React Web Developer Course I actually took the first edition of this course, but it's been updated/reworked since. Really good intro to React and Redux, as well as testing and other nice dev practices.

Books:
HTML and CSS by John Duckett
This is the most beginner-friendly, readable introduction to HTML/CSS that I found. It's also really pretty and has a ton of useful content. He also has one on JS and JQuery that I found really helpful, but JS has been changing so much lately, and JQuery is getting a lot less love these days than it used to, so I'd probably recommend using the following books for that instead.

You Don't Know JS by Kyle Simpson. Great, beginner-friendly, comprehensive, and available for free on github. A lot of folks will recommend JavaScript: The Good Parts and Eloquent JavaScript, but I found those too hard to comprehend until I already knew quite a bit of the language. So, while they're also good resources eventually, I think You Don't Know JS is where it's at for noobs beginners.

Understanding ECMAScript 6 by Nicholas Zakas is an awesome primer on all things ES6. This really, really helps if you're tackling React or other frameworks and just feeling overwhelmed.

Other Courses/Resources:
Javascript30 Wes Bos has quite a few high-quality free courses, and I've heard great things about his paid courses, but I'm cheap and haven't actually bought one yet (sorry, Wes). This one is definitely worth checking out to firm up your DOM manipulation and JS skills.

Practical JavaScript by Gordon Zhu is another free course that's really good for firming up your JS skills. He walks you through building a Todo application in plain vanilla JS.

CSS Tricks Join their email list, visit it frequently, listen to their podcast Shop Talk, google their guides. Super high-quality stuff.

Front End Happy Hour A fun podcast where front end developers from Netflix and other Silicon Valley giants play drinking games while discussing code and the coding life. Good to listen to while working, I find.

Anyway, that's all I can think of right now. But if you run into any stumbling blocks and I can be a help later, feel free to PM me. Good luck!

ES6 is great, basically a ES5 hotfix (10 years later, but ohh well)

https://www.amazon.com/Understanding-ECMAScript-Definitive-JavaScript-Developers/dp/1593277571/ref=sr_1_sc_1?ie=UTF8&qid=1501615594&sr=8-1-spell&keywords=understanding+emacscript+6

I recommend you take on some kind of project that interests you and will expand your skills/knowledge. I made a site blocker chrome extension for one of my first projects and it introduced me to chrome’s api. Or you could try making a portfolio site/blog for yourself to get the hang of different design practice. I used a static site generator for mine. The bottom line is to choose something that interests you and is outside your comfort zone.

I recommend perusing The principles of object oriented javascript and Understanding ECMAScript 6 for a good reference for JavaScript practices and for a good understanding of the language. I also like O’Reilly publishers JavaScript Cookbook and Refactoring JavaScript.