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Ajax

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A presentation on AJAX, presented during my 4th semester study with Web Technology as a subject.

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Ajax

  1. 1. Presentation on AJAX Presented By- Prince Shahu MCA 4th Semester Assam Engineering College
  2. 2. What is AJAX? Before “Asynchronous JavaScript And XML.” After “Any technique that allows the client to retrieve more data from the server without reloading the whole page.”
  3. 3. A programming language – no… A new technology – not exactly… So what else ? So what is it ? Ajax is the process of Using JavaScript to make a request to the server. Using the results of that request to dynamically modify the page the user is currently viewing .This request is not a full page load that moves the user to a new URL.
  4. 4. The Upside Ajax can improve the user experience. When used right, it sometimes makes Web applications feel a bit more like desktop applications (think Gmail). It is generally faster A full page load is expensive: full HTML, CSS, JavaScript files, and typically several images Ajax requests usually load a lot less
  5. 5. Many Downsides Ajax interactions are usually much harder to debug. Everything happens in the background, so it’s hard to see things go wrong. If not planned Ajax actions can easily degrade the interface experience instead of enhancing it.
  6. 6. Order of Developments In 1996 Internet Explorer introduces the concept of ‘Iframe’ element. In the year 1998, Microsoft introduces another technique, called ‘Microsoft’s Remote Scripting’ as a replacement to the older techniques. A year later, in 1999, Microsoft introduces the XMLHttpRequest object, an ActiveX control, in IE 5. In 2005, Jesse James Garret first tossed the term AJAX in a short essay after Google released its Maps Application.
  7. 7. Searching for a location on Google Maps. Let us see some applications of it…..
  8. 8.  Now even we pinch in or pinch out does the page reloads?
  9. 9.  Have you seen how Google Search Bar behaves ?  Or how Facebook works ?
  10. 10. Digging abit more …
  11. 11. Bibliography https://www.google.com https://www.youtube.com https://www.slideshare.net/
  12. 12. THE END

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