JavaScript

Master advanced JavaScript concepts through a ton of hands-on challenges designed to deepen your understanding of the world's most used coding language!

Learn the basics of JavaScript by solving 140+ interactive coding challenges. Along the way you will build a game, a browser extension, and even a mobile app!

Your essential tech interview preparation pack! Practice solving problems and honing the skills you need to succeed in a frontend coding interview.

This course will teach you advanced JavaScript from the ground up. It features a systematic walk-through of the most important concepts of the language, and teaches you to build a Google Keep clone and a Hacker News clone in vanilla JavaScript.

Alpine.js offers the reactive and declarative nature of big frameworks like Vue or React at a much lower cost. This interactive course will teach you the basics in less than an hour.

This ES6 tutorial teaches you modern JavaScript through 23 screencasts. You'll get a systematic walk-through of the most important ES6+ features so that you can start using them in your JavaScript projects today.

Code with confidence and lower your stress levels by learning how to test your code as you write it.

This tutorial features freeCodeCamp's ES6 curriculum recorded as interactive Scrimba screencasts. It gives you a methodical walk-through of the most important features of modern JavaScript.

Learning clean code is one of the best career investments you can make. By spending one hour to learn the fundamentals, you get to reap the benefits across all your future code bases. It's 10x the payoff for the effort.

A collection of lessons and challenges to give you a fundamental understanding of some of the tricky parts of JavaScript.

This D3 tutorial teaches you how to create powerful data visualizations for the web. It gives you a fast introduction to the key concepts of D3.js, like selections, data, axes, scales, bar charts, pie charts, SVG elements, and more.

Build your first mobile app using HTML, CSS and JavaScript + Firebase. Firebase is a magical database service that lets you easily make realtime apps.

In this course, you'll practice your software craftsmanship skills by coding six different binary search algorithms. Each solution will teach you a new technique

for solving problems as a software developer and level up your computer science skills in general.

Build a cool color lighten/darken tool from scratch and sharpen up your HTML, CSS and vanilla JavaScript skills along the way!

This course features freeCodeCamp's popular JavaScript curriculum recorded as interactive Scrimba screencasts.