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What is AJAX? What are the main characteristics of this technology? What are the existing standards...

What is AJAX? What are the main characteristics of this technology? What are the existing standards that AJAX is based on? Explain how AJAX works.

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The answer to the question is given below.

What Is AJAX?

AJAX -----> Asynchronous JavaScript and XML.
AJAX is a new technique for creating better, faster and more interactive web applications with the help of XML, HTML, CSS, JAVASCRIPT.
Using AJAX, web applications can send and receive data from the server asynchronously ( in the background , without reloading the page)
It is not a programming language.
AJAX is a misleading name. AJAX can use XML to transport data. It is the same as transporting data in plain text or JSON text.
For Example, :>> Google Suggest, Youtube, Facebook tabs use AJAX.


What are the main characteristics of this technology?
1. Update the web page without reloading and make the web page faster.
2. It is independent of server technology
3. No need to push the reload button and reload the complete website page.
4. No need to reload the whole page, some part of the page is needed to be reloaded.
5. Dynamically load the content of the page.


What are the existing standards that AJAX is based on?
AJAX is based on Internet Standards and uses the combination of the following techniques.
An object of XMLHttpRequest (to exchange the data with the server asynchronously)
Java Script/Data Object Model(DOM) --> for display or interaction with the information.
CSS-> for the styling of the data
XML---> Format for transporting the data.


How AJAX works?
The steps how AJAX works is given in the image below.









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