What is wrong in the following function ? function loadDoc() { varxhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 3 &&this.status == 200) { console.log(this.responseText); } }; xhttp.open("GET", "cd_catalog.xml", true); xhttp.send(); }

Which will change the class of XHTML element having ID of 'username'?

Which can be used to display 'inProcess.png' image while processing request?

Which object.method is responsible for writing text to current web page?

In an ajax request function callback you have the following code $('#childdiv').html(data); choose the most probable reason why a previous delegated 'click' event no longer functions

What does the status == 404 means ?

Can you perform file uploads using AJAX requests alone?

Can you make an XMLHttpRequest asynchronous call to a page on a different top level domain from the current page's top level domain?

True or false? Ajax can be used to open a connection from the server to the browser without the browser making an explicit request.

What does JSON do?

Can an XMLHttpRequest object be used to receive binary data?