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Learn how to control the flow of a program and use JavaScript to power dynamic behaviors on websites.

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

It's time to build fluency in JavaScript Modules. In this project, we're going to practice building a modular program in JavaScript so you can hone your skills and feel confident taking them to …

JavaScript JavaScript is a programming language that powers the dynamic behavior on most websites. Alongside HTML and CSS, it is a core technology that makes the web run.

Continue your JavaScript learning journey with Learn JavaScript: Functions and Scope. Define and reuse logic with functions and scope variables for effective data access to build the foundation …

Continue your JavaScript learning journey with Learn JavaScript: Async Programming. Asynchronous JavaScript can be tricky even for experienced developers, but it’s part of what …

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Codecademy has hundreds of free and easy to use cheatsheets that cover dozens of coding languages and are created by our world-class curriculum developers.