I'm trying to get a general idea of people's background in JS. I'm totally new to it, I've only dabbled in JS files for quick editing. I feel it's the one language I want to fully understand and learn.
Would you recommend Treehouse or any other online program? Unfortunately my college has no classes for it and the classes I have taken have been outdated.
We all learned javascript by doing, there's simply no other way to do it. Taking courses and reading books are good steps to guide you on the path to learning a programming language, but they are not a substitute.
As for what I'd recommend? I'd recommend sending pull requests to the NodeBB codebase 
Had half a year to waste because it was too late to switch school level (I'm not even going to bother trying to translate this into weird USA school terms :P), I already knew quite a bit of MIPS (PSP hacking) by then, and wanted to try something else.
Don't know why I chose JavaScript, just did. Started with w3schools (ikr), eventually just learned by doing, doing and more doing. Along the way of doing I of course read the occasional article, "guide", best practices, documentations etc. No books and courses though.
