History of AJAX

Prof. Fazal Rehman Shamil

AJAX is client-sided web development technique it’s wont to produce interactive Web applications; AJAX could be a application program technology independent of web server software. As For content in Ajax, XHTML is getting used and for staging CSS with document Object model and JS for vibrant content display are getting used.

Prior to 2005, it absolutely was difficult to determine a connection between the client and therefore the server. Developers use hidden frames to fill server data to the client side.

But in 2005 James Garrett wrote an editorial named AJAX: a replacement Approach to Web Applications. In the early-to-mid 1990s, most web sites were supported complete HTML pages. Each user action required that a whole new page be loaded from the server. This process was inefficient, as reflected by the user experience: all page content disappeared, and then the new page appeared. On every occasion the browser reloaded a page due to a partial change, all of the content had to be re-sent, although just some of the data had changed. This placed additional load on the server and made bandwidth a limiting factor on performance.

Microsoft was the primary to introduce a Document Object Model (DOM) during a new sort of
Old markup language: dynamic HTML. Although never made it to a standard, DOM verb in 1997. DOM may be cheers to access portions of a page by its path in HTML tree or with the DOM function, as an example with the entity ID attribute. The DOM is now a necessary a part of Ajax. In the same year that the DOM became standard, a brand new element was introduced to HTML I frame. This element in itself can contain a webpage. The tire group has become unnecessary (For our purpose) hidden frame technique is implemented with zero from zero
iframe.

The good advantage was that such an iframe may be created instantly using JavaScript
and DOM. This made asynchronous calls possible without the necessity for a hidden window layout In HTML design (which encourages separation between “code” and presentation).  In 1996, the iframe was introduced by Internet Explorer; just like the object object, it can download or fetch content asynchronously.

In 1998, the Microsoft Outlook Web Access team developed the concept behind the XML Http Request scripting object.  It appeared as XMLHTTP within the second release of the MSXML Library that came with Internet Explorer 5.0 in March 1999. XMLHTTP ActiveX control functionality in IE 5 was later implemented by Mozilla, Safari, Opera and other browsers as XML Http Request JavaScript object. Microsoft has adopted the first XML Http Request form as of Internet Explorer 7.

 

The ActiveX version remains supported in Internet Explorer, but not in Microsoft Edge. The utility for back-end HTTP requests and asynchronous web technologies remained somewhat mysterious until they began to look widely in online applications like Outlook Web Access (2000) and Odd post (2002). It appears that Google was the primary to comprehend what this modification of sea was like.

With Gmail and Google Maps, they built apps that took advantage of that to produce a program very just like an internet app. (Odd post, which Yahoo bought, already started, but its software was paid out, and then they didn’t get much attention.) With Gmail, for instance, the app constantly asks the server if there’s new email.

If there’s, then it refreshes the page directly, it doesn’t allow you to download a brand new page. Google Maps allows you to tug a map around it, as you do; it automatically downloads the parts of it that you simply want to seem at on the road, without looking forward to a wholly new page to download.

Google has published a wide-ranging browser for Ajax Compliant, Gmail (2004) and Google Maps (2005). In October 2004, the general public beta version of Kayak.com was among the primary widespread uses of e-commerce for what its developers at the time called “the xml http thing”. This is growing interest in AJAX among web developers.

The term AJAX was generally used on February 18, 2005 by James Garrett in a piece of writing titled Ajax: a replacement Approach to Web Applications supported the technologies employed in Google Pages.

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