AJAX and the traditional Client Server web model

1. What is AJAXAJAX (Asynchronous JavaScript and XML), is a group of interrelated vane development techniques use to create interactive web applications or rich meshwork applications. With AJAX, web applications can retrieve data from the server asynchronously in the background without interfering with the give away and behavior of the existing page. selective in initialiseion is retrieved using the XMLHttpRequest object or through the use of contradictory Scripting in browsers that do not support it.

AJAX has come to epitomize a broad group of web technologies that can be use to implement a web application that communicates with a server in the background, without interfering with the current state of the page. downstairs is the list of technologies1.XHTML and CSS for presentation2.The Document aspiration Model (DOM) for dynamic display of and interaction with data3.XML and XSLT for the interchange, manipulation and display of data, respectively4.The XMLHttpRequest object for asynchronous communication5.JavaScript to contract these technologies to affirmherJavaScript is not the only client-side scripting language that can be used for implementing an AJAX application. Other languages such as VBScript and EGL Programming Language argon also capable of the required functionality.

XML is not required for data interchange and therefore XSLT is not required for the manipulation of data.



JavaScript Object Notation (JSON) is often used as an alternative format for data interchange, although other formats such as preformatted HTML or plain text can also be used.

2.AJAX Advantages and DisadvantagesIn galore(postnominal) cases, related pages on a website consist of much matter that is common between them. Using traditional methods, that content would assimilate to be re preventativeed on every request. However, using AJAX, a web application can request only the content that involve to be updated, thus drastically reducing bandwidth usage and load time.

The use of asynchronous requests allows the clients Web browser UI to be...

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