It's time to learn practical JavaScript the modern way

Learn modern JavaScript from scratch, and practice in an intuitive environment. The challenges are inspired from modern real world projects to make sure that you're learning the best practices, one step at a time. Try the first 40 lessons, challenges & flashcards for free. You can upgrade to a Pro account with a one-time payment.

Learn JavaScript is suitable for beginner developers who have basic experience in any programming language.

What you will learn

Here are the topics that you will learn. The lessons & challenges will guide you through these topics step by step.

  • Strings
  • Numbers
  • Variables
  • Conditions
  • Arrays
  • Functions
  • Arrow functions
  • Objects
  • Classes
  • Lexical scope
  • Web Components
  • HTML Templates
  • Advanced Control Flow
  • Import/Export
  • JSON
  • Promises
  • Fetch
  • APIs
  • Async/await
  • DOM
  • Events
  • Forms
  • Custom Elements
  • Shadow DOM
JS flashcards

Learn on the go

Keep your memory refreshed and use the Flashcards app to do some exercises on the go. The app will be available to you for free as soon as you complete the first 2 challenges!

What people are saying

Before taking this course, JavaScript always felt impossible to understand. I'd tried dozens of tutorials but always gave up and felt demoralized afterwards. Less than a month since starting LearnJavascript Online, I feel empowered to develop my own projects.
The course is perfectly structured from start to finish, and enables you to learn by actively writing code instead of just reading / watching somebody else. Without a doubt, this is the best investment I've made in my own education as a developer.
@bruno_crosier

I've been studying JS for a long time, but thanks to this course many things fell into place and their meaning and purpose became clearer. Also, practical tasks helped me a lot; by doing this you get used to the language, its constructions and how they interact with each other. It really helps to memorize the material and understand how it can be applied in practice. And I really love flashcards which helps me to refresh and recall material. - Anton

Awesome!! I've tried everything, books, tutorials, projects etc. But this is by far my best learning experience. Thank you!! - Nick

It's a great series of lessons and challenges that teach ES6 fundamentals clearly and concisely. Jad has given special attention to creating lean challenges that test what you have learned without getting in your way.
As someone with a basic understanding of JavaScript already, I found Learn JavaScript very helpful for cementing what I already knew, and for picking up new things that I had missed along the way.
@eckm

I'm super impressed with how high the quality of this course is. I've used a few similar products in the past and this is easily the nicest to use. @luke_bennett_

I can't tell you how much fun this is. The step-by-step, cumulative, real-world application has helped me to cement concepts that I've struggled with for a long time. @windowswebdev

About the instructor

Jad Joubran

Jad is a Google Developer Expert, Microsoft Most Valuable Professional and Freelance Web Consultant based in Amsterdam.

He's on a mission to inspire developers around the world by regularly speaking at international conferences & publishing videos on YouTube.

His passion for JavaScript led him to create the most interactive & step by step JavaScript course where he teaches modern & advanced concepts for beginners.

Why this course?

  • Read concise lessons
  • Solve interactive challenges
  • Recap concepts with flashcards
  • Video recaps for advanced concepts
  • Get hints when stuck
  • Ask questions when stuck
  • Certificate of completion
  • Saves notes in lessons
  • Preview your notes
  • Export/Print your notes
  • Practical examples & use cases
  • Get help from course creator
  • Unlock achivements
  • View official solution