JavaScript

The programming language of the web. It runs in every browser, powers interactive interfaces, and (via Node.js) also runs on servers. The most widely used language in the world.

Whether you're hiring developers, reading code, or building your first feature, JavaScript is unavoidable on the modern web. It's also the most beginner-friendly language to start with.

A founder learns basic JavaScript to add a countdown timer to her product launch page. Her first step into writing real code.