jQuery JavaScript Library
jQuery is a fast, small, and feature-rich JavaScript library for browser and Node.js environments. It is written in ECMAScript modules and provides DOM manipulation, AJAX, event handling, animations, and other utilities through a concise API. The library can be used as a traditional script tag, as an ECMAScript module, via npm, or through AMD, and supports customizable builds that allow developers to exclude unnecessary modules. jQuery is maintained by the jQuery Foundation and accepts community contributions through its open-source development process.