jQuery
The Write Less, Do More, JavaScript Library.
Language: JavaScriptCategory: UtilityFirst released: 2006Created by: John ResigLicense: MIT
jQuery is a fast, small, and feature-rich JavaScript library. It simplified HTML document traversal and manipulation, event handling, animation, and Ajax with an easy-to-use API that works across a multitude of browsers. While modern frameworks have reduced its prominence, jQuery still powers millions of websites and remains a cornerstone of web development history.
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Key Features
Cross-browser DOM selection & traversalSimplified event handlingCSS manipulation and animationsAJAX with convenient methods (get, post, load)Extensible plugin architectureChainable method callsLightweight (slim build available)Broad legacy browser support