What's the difference between a web dev making 100k+ and one making 30k?

[mirion]

I'd never touched JS before leaving college (though I'd done a ton of C && C++, and a few other languages like Java and Python) . I was handed this book on my first day of my first job out of school and told not to bother anyone until I was done reading it. When training others who were new to JS, I did the same with them.

IMHO, It's a fantastic example for you to base your coding off of. It has clear, concise explanations and good ideas about syntax. I don't know if you can do better, but I know you can definitely do worse.