jQuery is a JavaScript library designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
- Download the jQuery library from jQuery.com
- Include jQuery from a CDN, like Google
There are two versions of jQuery available for downloading:
- Production version - this is for your live website because it has been minified and compressed
- Development version - this is for testing and development (uncompressed and readable code)
Both versions can be downloaded from jquery.com.
The jQuery library is a single JavaScript file, and you reference it with the HTML <script> tag (notice that the <script> tag should be inside the head section):
<head>
<script src="jquery-3.5.1.min.js"></script>
</head>