$.ajax loading code example

Example 1: jQuery - AJAX load() Method

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("#div1").load("demo_test.txt");
  });
});
</script>
</head>
<body>

<div id="div1"><h2>Let jQuery AJAX Change This Text</h2></div>

<button>Get External Content</button>

</body>
</html>

Example 2: loading page for all ajax call in jquery 3.3.1

$(document).ajaxStart(function () {
            $('#ajax-loading-image').css("display", "block");
        });
        $(document).ajaxStop(function () {
            $('#ajax-loading-image').css("display", "none");
        });