JavaScript Tutorial

jQuery.support()

<!DOCTYPE html>
<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script>
        $(document).ready(function(){
          $("p").html("This browser can create XMLHttpRequest object: " + jQuery.support.ajax);
        });
    </script>
</head>
<body>
    <p></p>
</body>
</html>