AJAX – Introduction

Asynchronous JavaScript and XML(AJAX) is a  Web development technique used by many Web technologies for creating better, faster, and more interactive web applications, with the help of XML, HTML, CSS, and Java Script. AJAX is a combination of group of technologies where  HTML and CSS can be used in combination to mark up and style information and JavaScript for dynamic display and allows the user to interact.

AJAX is an exciting technology used in new ways i.e. can Update a web page without reloading the page, can Request data from a server – after the page has loaded, can Receive data from a server – after the page has loaded and simultaneously Send data to a server – in the background.

AJAX Features:

• Browser based presentation by using HTML and Cascading Style Sheets (CSS).
• Data is stored in XML format and fetched from the server.
• The data fetching by XMLHttp Request objects in the browser.
• JavaScript to make everything happen.