What does the getAllResponseHeaders() function do ?

varxhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 &&this.status == 200) { console.log(this.getAllResponseHeaders()); } }; xhttp.open("GET", "ajax_info.txt", true); xhttp.send();

Which is NOT a valid method in the key/value pair to configure ajax request in jquery.ajax()?

For the code fragment below, function ajax(a,b,c) { c=new XMLHttpRequest; c.open('GET',a); c.onload=b; c.send() } Choose the option that best describes the parameter c

Can we make a HTTP POST Ajax call?

For the code fragment function x(a,b,e,d,c){ c=new XMLHttpRequest; c.open(e||'get',a); c.onload=b; c.onerror=error; c.send(d||null) } Choose the option that best describes the parameter d

Which method is used for cross domain AJAX calls?

What is the CORS-enabled Ajax request object constructor in IE8-9?

What does CORS stand for?

What is the name of the object which provides CORS support in Internet Explorer 8 and Internet Explorer 9?

What's wrong with the following code? function check_for_request_done() { if (xhr.readyState == 4) { clearInterval(timer); do_something_with_result(xhr); } } var xhr = new XMLHttpRequest(); xhr.open("GET", "/resource", true); xhr.send(); var timer = setInterval(check_for_request_done, 100);

If the server is expecting JSON-formatted information in the request, what code will turn the JavaScript object dataToSend into data you can send to the server (consider modern browsers only, including IE8 and above)?