jQuery simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.
Here is the list of important core features supported by jQuery −
AJAX Support − The jQuery helps you a lot to develop a responsive and feature-rich site using AJAX technology.
DOM manipulation − The jQuery made it simple to select DOM elements, traverse them and modifying their content by using cross-browser open source selector engine called Sizzle.
Event handling − The jQuery offers an elegant way to capture a wide variety of events, such as a user clicking on a link, without the need to clutter the HTML code itself with event handlers.
Animations − The jQuery comes with plenty of built-in animation effects which you can use in your websites.
Cross Browser Support − The jQuery has cross-browser support, and works well in IE 6.0+, FF 2.0+, Safari 3.0+, Chrome and Opera 9.0+
Lightweight − The jQuery is very lightweight library – about 19KB in size ( Minified and gzipped ).
Latest Technology − The jQuery supports CSS3 selectors and basic XPath syntax.