Learn JavaScript | Codecademy (original) (raw)

Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.

2,323,425 learners enrolled

• Time to complete
  Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
  15 hours

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 • 9 quizzes

• Certificate of completion available with Plus or Pro

Earn a certificate of completion and showcase your accomplishment on your resume or LinkedIn.

The platform

Hands-on learning

Projects in this course

• practice ProjectKelvin WeatherIn 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.
• practice ProjectDog YearsIn 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.
• practice ProjectMagic Eight BallBuild 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 LinSoftware Engineer at Codecademy

Kenny is the Domain Manager for the Web Development Domain at Codecademy. He contributed to a wide range of courses and paths at Codecademy, including JavaScript, Bootstrap, Handlebars, Phaser.js, Go, Swift, TypeScript, and Lua.

Earn a certificate of completion

Show your network you've done the work by earning a certificate of completion for each course or path you finish.

• Show proofReceive a certificate that demonstrates you've completed a course or path.
• Build a collectionThe more courses and paths you complete, the more certificates you collect.
• Share with your networkEasily add certificates of completion to your LinkedIn profile to share your accomplishments.

Learn JavaScript course ratings and reviews

4.48 out of 5 stars

30,756 ratings

1. 5 stars
2. 4 stars
3. 3 stars
4. 2 stars
5. 1 star

• 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.
• 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.
• 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.

Join over 50 million learners and start Learn JavaScript today!

Looking for something else?

Related resources

• ArticleWhy JavaScript Is Essential Learn what is JavaScript and why it is the most popular programming language. Discover its history, web development role, backend capabilities, and future potential in technology.
• ArticleWhy learn JavaScript foundations?Learn more about why you should build a strong foundation in JavaScript when you first learn the language.
• ArticleWhat is JavaScript?What is JavaScript, and how does it work?

Related courses and paths

• Free courseLearn JavaScript: FundamentalsLearn how to control the flow of a program and use JavaScript to power dynamic behaviors on websites.
• Skill pathCreate a Back-End App with JavaScriptLearn how to build back-end web APIs using Express.js, Node.js, SQL, and a Node.js-SQLite database library.
• Free courseLearn JavaScript: Functions and ScopeDefine and reuse logic with functions and scope variables for effective data access.

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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.