jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax. It is free, open-source software using the permissive MIT License.More..
History:jQuery was originally created in January 2006 at Bar
Camp NYC by John Resig, influenced by Dean Edwards' earlier css Query library.
| John Resig |
Example:
<html>
<head>
<title>jQuery Hello World</title>
<script type="text/javascript" src="jquery-1.2.6.min.js"></script>
</head>
<body>
<script type="text/javascript">
$(document).ready(function(){
$("#msgid").html("This is Hello World by JQuery");
});
</script>
This is Hello World by HTML
<div id="msgid">
</div>
</body>
</html>