jQuery is a lightweight, “write less, do more”, JavaScript library. The main purpose of using jQuery is to make it much easier to use JavaScript on your modern and smart website.
jQuery was developed to save the time of developers by reducing the code.
jQuery was originally created in January 2006 at BarCamp NYC by John Resig, influenced by Dean Edwards’ earlier cssQuery library. It is currently maintained by a team of developers led by Timmy Willison (with the jQuery selector engine, Sizzle, being led by Richard Gibson)
Include the Jquery Library using CDN or Self hosted file.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
Jquery as SelfHosted
<script src="js/jquery-latest.js"> </script>