Many Internet Web sites contain JavaScript, a scripting programming language that runs on the web browser to make specific features on the web page functional. If JavaScript has been disabled within …

JavaScript is a high-level, often just-in-time–compiled language that conforms to the ECMAScript standard. [12] It has dynamic typing, prototype-based object-orientation, and first-class functions. It is …

JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning JavaScript now » With our Try it Yourself editor, you can edit the source code …

Oct 2, 2025 · JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the scripting language for Web …

2 days ago · Here we learn JavaScript, starting from scratch and go on to advanced concepts like OOP. We concentrate on the language itself here, with the minimum of environment-specific notes.

Sep 10, 2025 · JavaScript is a programming language used to create dynamic content for websites. It is a lightweight, cross-platform, and single-threaded programming language. It's an interpreted …

While HTML and CSS help create the design of a webpage, JavaScript helps create functionality on a webpage. Other non-browser environments also use JavaScript for more functionality. Do not …

Mar 31, 2024 · JavaScript lets developers modify the structure and presentation of a page by adding, removing, and altering markup and styles in response to any combination of user interaction and …

Nov 7, 2025 · The JavaScript Guide shows you how to use JavaScript and gives an overview of the language. If you need exhaustive information about a language feature, have a look at the JavaScript …

3 days ago · The freeCodeCamp community just published our new JavaScript certification. You can now sit for the exam to earn the free verified certification, which you can add to your résumé, CV, or …