Free
CourseLearn JavaScript
Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.
Skill level
BeginnerTime to complete
Approx. 20 hoursCertificate of completion
Included with paid plansPrerequisites
None
About this course
You interact with JavaScript code all the time — you just might not realize it. It powers dynamic behavior on websites (like this one) and plays an important role in many fields, like front- and back-end engineering, game and mobile development, virtual reality, and more. In this course, you’ll learn JavaScript fundamentals that will be helpful as you dive deeper into more advanced topics.
Skills you'll gain
Build core programming concepts
Learn object-oriented concepts
Read and write JavaScript
Syllabus
11 lessons • 12 projects • 8 quizzesThe platform
Hands-on learning
Don’t just watch or read about someone else coding — write your own code live in our online, interactive platform. You’ll even get AI-driven recommendations on what you need to review to help keep you on track.
Projects in this course
- Project
Kelvin Weather
In this project, we're going to practice variables and printing to the console in JavaScript so you can hone your skills and feel confident taking them to the real world. Why? You've got to master the basics. Get comfortable with these fundamentals. - Project
Dog Years
In this project, we're going to practice variables and strings in JavaScript so you can hone your skills and feel confident taking them to the real world. Why? These concepts will help you use your data to output information to your users. - Project
Magic Eight Ball
Build a virtual Magic Eight Ball using control flow in JavaScript. You’ll practice building decision-making into your programs and gain confidence in writing more robust JavaScript code.
Meet the creator of the course
Kenny Lin
Web Development Domain Manager at Codecademy Learn JavaScript course ratings and reviews
22,806 ratings
- 5 stars
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- Super interactive course that spells most of the abstract parts of this language into an easy-to-digest manner. There's a lot of insight in the forum and I thought it was the most conducive to progress, as I found that some of my "classmates" were also having similar questions to mine.Mark P.Verified Learner
- Each step of the course was clearly explained and the activities naturally deepened my understanding of each concept. I finished it feeling more confident in my knowledge of JavaScript than I have with other courses of similar content.Sarah B.Verified Learner
- I recently had the opportunity to dive into the JavaScript course offered by Codecademy, and I must say it was an exceptional learning experience. The course stands out as a comprehensive and well-structured program that caters to learners of all levels, from beginners to more advanced developers.Khairul R.Verified Learner
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Frequently asked questions about JavaScript
JavaScript is one of the most popular languages in the world. It’s powerful and versatile, and with HTML and CSS, it forms the foundation of modern web development.
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Related resources
- Article
JavaScript: All the Cool Kids Are Doing It
Why is JavaScript so popular? What can you do with it? - Article
Why learn JavaScript foundations?
Learn more about why you should build a strong foundation in JavaScript when you first learn the language. - Article
JavaScript Versions: ES6 and Before
Ever heard of the term "ES6" and wondered what it's about? Read this article to read and find out!
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Unlock additional features with a paid plan
Practice Projects
Guided projects that help you solidify the skills and concepts you're learning.Assessments
Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.Certificate of Completion
Earn a document to prove you've completed a course or path that you can share with your network.