Javascript AJAX – XMLHttpRequest

The XMLHttpRequest object is used to request data from a server.

Send a Request To a Server

To send a request to a server, we use the open() and send() methods of the XMLHttpRequest object:

xhttp.open("GET", "ajax_info.txt", true);
xhttp.send();
Method Description
open(method, url, async) Specifies the type of request

method: the type of request: GET or POST
url: the server (file) location
async: true (asynchronous) or false (synchronous)

send() Sends the request to the server (used for GET)
send(string) Sends the request to the server (used for POST)

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