Supercharge your skills with Codecademy's JavaScript courses. From interactive projects to real-world coding, master JS today for a brighter tomorrow!

Begin your web development journey with our JavaScript course. Explore dynamic scripting for interactive web solutions.

Ready to start your journey into the JavaScript programming language? Take Learn JavaScript: Fundamentals — JavaScript powers dynamic behaviors on websites and plays an important …

This course dives into advanced concepts like classes, promises, async/await, and requests. You’ll learn how to create more dynamic and efficient web applications while mastering …

Learn CSS-in-JS Advance your CSS styling strategies with CSS-in-JS, a popular technique that allows programmers to write CSS styling in JavaScript.

Learn to build real-world web apps with HTML, CSS, and JavaScript fundamentals to advanced TypeScript, Angular, and Firebase development in this 18-week beginner-friendly bootcamp — …

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JavaScript supports the concept of classes as a syntax for creating objects. Classes specify the shared properties and methods that objects produced from the class will have.

Continue your JavaScript learning journey with Learn JavaScript: Classes and Modules. Reuse logic in different parts of our application by easily producing multiple objects that have the …

Mar 21, 2025 · When a user clicks on a tab button, the code uses querySelector() to find the active tab, update its class, and show the corresponding content. This practical application …