---
title: "How to create the XMLHttpRequest object and what are the uses of XMLHttpRequest object in AJAX?"
description: "How to create the XMLHttpRequest object and what are the uses of XMLHttpRequest object in AJAX?"
author: "Ethan Karla"
published: 2021-08-19
canonical: https://answers.mindstick.com/qa/93902/how-to-create-the-xmlhttprequest-object-and-what-are-the-uses-of-xmlhttprequest-object-in-ajax
category: "programming"
tags: ["c#", ".net programming", "php programming", "asp.net mvc", "java programming", "web api"]
reading_time: 3 minutes
---
# How to create the XMLHttpRequest object and what are the uses of XMLHttpRequest object in AJAX?
How to create the XMLHttpRequest object and what are the uses of XMLHttpRequest object in [AJAX](https://www.mindstick.com/articles/257/ajax-toolkit-calendarextender-control-in-asp-dot-net)?
## Answers
### Answer by Ravi Vishwakarma
An object of **XMLHttpRequest** is used for Asynchronous Communication between Client and Server.
There are some uses of **XMLHttpRequest.**
1. It sends data to the client in the background.
2. It receives data from the server.
3. Updates it on the webpage without reloading it.
**Create the XMLHttpRequest in Ajax.**
## Syntax
```
XML_Http_name = new XMLHttpRequest();
```
**Callback function of XMLHttpRequest in ajax.**
Syntax
```
XML_Http_name.onload = function() { // the callback function should contain the code to execute when the response is ready.}
```
## Send a Request on a server in ajax
To send a request to a server, you can use the open() and send() methods of the XMLHttpRequest object
```
XML_Http_name.open(method, url, async, user, psw);XML_Http_name.send();
```
```
method: the request type GET or POST
URL: the file location
async: true (asynchronous) or false (synchronous)
user: optional user name
psw: optional passwordxhttp.open('mwthod', 'ajax_info.txt');
```
## Example
```
Ajax Example
Ajax Example
Click button then call the ajax without reload the page