Professional JavaScript

This is the #1 resource to master modern JavaScript! Take your JS to a professional level by building beautiful, real-world projects from scratch.

Modern JS overall (ES6+)

Best practices in 2025

Promises & async/await

fetch() for API calls

Build process (webpack)

Components/state/render

Project planning

Advanced JS

BONUS: design/HTML/CSS

Course Projects

Top-tier, real-world projects. Expertly engineered to help you code modern websites & web apps with the latest best practices.

Fancy Counter

Build a smart counter app.

Beginner

Word Analytics

Build a slick, modern web app for text analytics.

Beginner

CorpComment

Build a sleek public feedback tool.

Intermediate

rmtDev

Build a stylish job board for remote developer jobs.

Advanced

It's unavoidable: if you want to be a professional developer you need to master modern JS.

How to code JS in 2025 by building realistic projects from scratch and seeing how it all fits together

Avoid hundreds of beginner mistakes so the people who have to interact with your code have it easy

Deeply master JS/programming basics: var/let/const, functions, objects & arrays, etc.

Critical best practices that every JS-developer should know (e.g. how to use async/await)

Learn how to communicate with an API properly by using fetch()

Learn the crucial additions to JS: arrow functions, destructuring, spread operator, etc.

Easily master React and TypeScript afterwards (TypeScript module included, coming soon)

Build modern web apps without frameworks and see why people use React

Implement a simple build process for JS with webpack

BONUS: By going through the course you'll naturally improve design/HTML/CSS too