AJAX:

Asynchronous JavaScript And XML

Before AJAX back then

And we get result as

These days with AJAX

AJAX History In 1996, theiframetag was introduced byInternet Explorerto load or to fetch content asynchronously

In 1998, MicrosoftOutlook Web Appteam implemented the first componentXMLHTTPby client script.

In 1999, Microsoft used its iframe technology to dynamically update the news stories and stock quotes on the default page for Internet Explorer, and created the XMLHTTPActiveXcontrol inInternet Explorer 5. Microsoft has adopted the native XMLHttpRequest model as ofInternet Explorer 7.

AJAX HistoryGooglemade a wide deployment of standards-compliant,cross browserAjax withGmail(2004) andGoogle Maps(2005).

The term "Ajax" was publicly stated on 18 February 2005 byJesse James Garrettin an article titled "Ajax: A New Approach to Web Applications", based on techniques used on Google pages.

On 5 April 2006, theWorld Wide Web Consortium(W3C) released the first draft specification for the XMLHttpRequest object in an attempt to create an officialWeb standard.

Core ComponentsJavaScript JavaScript function is called when an event occurs in a page. Glue for the whole AJAX operation.

DOM API for accessing and manipulating structured documents. Represents the structure of XML and HTML documents.

XMLHttpRequest JavaScript object that performs asynchronous

Working Cycle

Traditional vs AJAX

Features Ajax

AJAX Useful Links

AJAX Tutorial- http://www.hub4tech.com/ajax-tutorialAjax Interview Questionshttps://www.hub4tech.com/interview/ajax