jQuery is a fast, small, and feature-rich JavaScript library. jQuery 2.0 is intended for the modern web. Which does not support older browsers (IE 6,7,8). Its light and more efficient
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. jQuery 2.0 is intended for the modern web. Which does not support older browsers (IE 6,7,8)