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| 1. Speed and invisibility (all smart clients) makes for a very efficient user experience. 2. The smaller server resources footprint helps server scalability. 3. Dynamic and continuous user experiences. 4. Desktop-like user interfaces. |
| AJAX is a web development technique used at client side to create interactive web application. Its works as, it retrieve the data from the server asynchronously in the background without refreshing the whole page. It only refreshing the some part of the page and give result, instead of refreshing the whole page with its images and the CSS. |
| -> The main purpose of the Ajax is to provide an effective output, communicating with the server for process the clients query quickly. |
| -> It allows to performing the processing on user computer with the data taken from the server. Its main theme is to processing of web page formerly with the server using the Web services or php scripts, without interfering with the display and behavior of the existing page. (Page may includes many contents excluding text, images etc). |