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Ajax Tutorial ( "AJAX Tutorial")( "AJAX Introduction")( "AJAX Examples")( "AJAX Create XMLHttpRequest Object")( "AJAX – Send to Server")( "AJAX XMLHttpRequest Server Response")( "AJAX – onreadystatechange Event")[AJAX ASP/PHP]( "AJAX ASP/PHP")( "AJAX Database")( "AJAX XML")( "AJAX Examples")( "AJAX JSON Example")( "Fetch API") ( "AJAX Introduction")[](

AJAX Tutorial

AJAX = Asynchronous JavaScript and XML (Asynchronous JavaScript and XML).

AJAX is not a new programming language, but a new method using existing standards.

The biggest advantage of AJAX is that it can exchange data with the server and update part of the web page content without reloading the entire page.

AJAX does not require any browser plugins, but requires the user to allow JavaScript to execute in the browser.

XMLHttpRequest is just one way to implement Ajax, and of course modern methods like the fetch API can also be used.

AJAX Examples

Use AJAX to modify this text content

Modify Content

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Start Learning AJAX Now!

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Prerequisites before reading this tutorial:

To read this tutorial, you need the following basics:

• HTML and CSS basics
• JavaScript basics

If you want to learn these basics, you can find the corresponding tutorials on our homepage .

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AJAX Applications

• Use XHTML+CSS to express information;
• Use JavaScript to manipulate DOM (Document Object Model) to perform dynamic effects;
• Use XML and XSLT to manipulate data;
• Use XMLHttpRequest or the new Fetch API for asynchronous data exchange with the web server;
• Note: AJAX is different from RIA technologies such as Flash, Silverlight, and Java Applet.