Which browser features and/or technologies must be enabled, at a minimum, for AJAX techniques to function properly?

What are the advantages of using JavaScript libraries (like jQuery) to implement Ajax?

The primary benefit of using AJAX techniques in a web application is:

Which method on the XMLHttpRequest object is used to send custom HTTP headers with a request?

What is the value of the "status" attribute of the completed XMLHttpRequest object if the Ajax request has pulled the response data from the browser cache? Consider only non-IE browsers.

The onreadystatechange change event is used to invoke behavior when

Correct way to disable register button while request is processing?

To check if DOM element 'currentDiv' don't have any child nodes, we can use which one of the following conditions?

Which method is NOT supported by the XMLHttpRequest object?

By default, browsers do not support cross domain AJAX requests.

(function worker() { $.ajax({ url: 'ajax/test.html', success: function(data) { $('.result').html(data); }, complete: function() { setTimeout(worker, 5000); } }); })();