jquery reference link code example
Example 1: jquery link
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
Example 2: include jquery
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
Example 3: how to use jquery
<script
src="https://code.jquery.com/jquery-3.4.1.js"
integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
crossorigin="anonymous"></script>
<p id="example">Hello, world</p>
<script type="text/javascript">
var e = document.getElementById('example');
var ej = $('#example');
$('#example').text("Goodbye everybody, I've got to go");
</script>