So you have read a couple of tutorials, followed some YouTube videos and learned the basics of JavaScript, but what's next?

Here are some repositories that will help you sharpen your skills in JavaScript, ordered by level from 0 to 100%.

"Hello world" — absolute beginners

• Learn Javascript by GitBook — A free book that teaches the basics of programming and JavaScript. A great intro to both.

Beginners that know some stuff

• JavaScript30 Challenge by Wes Bos — An awesome 30-day challenge that will help you apply everything you learned in daily projects. A good way to also build a basic portfolio as a junior JS developer.

Ok, so that's how it works!

• 33 concepts every JavaScript developer should know by Leonardo Maldonado — A huge list of links to blogs and sources that will teach you how JavaScript works under the hood. Something every JavaScript developer should master.

Let's check what's going on under the hood

• Computer Science in JavaScript by Nicholas C. Zakas — A collection of classic computer science paradigms, algorithms and approaches written in JavaScript.

Bring the heavy artillery

• The Algorithms — JavaScript — A huge collection of algorithms implemented in JavaScript following best practices.

Little bonus

• 30 Seconds of Code by 30secondsofcode.org — Hundreds of JavaScript snippets that will help you speed up your development process while keeping your code clean and efficient.

The above repos should provide you with everything you need to sharpen your skills and become a better JavaScript developer.