There are several ways to start using jQuery on your web site. You can:
There are two versions of jQuery available for downloading:
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>
Alternatively, you can include jQuery in your document through freely available CDN (Content Delivery Network) links, if you don't want to download and host jQuery yourself.
CDNs can offer a performance benefit by reducing the loading time, because they are hosting jQuery on multiple servers spread across the globe and when a user requests the file, it will be served from the server nearest to them.
This also offers an advantage that if the visitor to your webpage has already downloaded a copy of jQuery from the same CDN while visiting other sites, it won't have to be re-downloaded since it is already there in the browser's cache.
If you don't want to download and host jQuery yourself, you can include it from a CDN (Content Delivery Network).
Google is an example of someone who host jQuery: