[Jefro118]

I think JavaScript: The Good Parts is still relevant, you'll just want to supplement it with other resources on ES6, async, etc.

I recommend Kyle Simpson's series You Don't Know JS for understanding in depth.

Eloquent JavaScript by Marijn Haverbeke is a great interactive resource covering the basics: https://eloquentjavascript.net.

For more practical guidance on specific topics I recommend https://egghead.io if you're okay learning from videos.

[cjmoran]

I wasn't a newcomer to JS when I started working with ES6, but it had been a while so I picked up The Good Parts as a primer. It was still quite useful and I was able to (I think) pick up all the new ES6+ syntax more easily because of it.