AJAX Tutorials

The History of AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 6

In the beginning, there was the World Wide Web. Compared with desktop applications, web applications were slow and clunky. People liked web applications anyway because they were conveniently available from anywhere, on any computer that had a browser. Then Microsoft created XMLHttpRequest in Internet Explorer 5, which let browser-side JavaScript communicate with the web server in the background without requiring the browser to display a new web page. That made it possible to develop more fluid and responsive web applications. Mozilla soon implemented XMLHttpRequest in its browsers, as did Apple (in the Safari browser) and Opera.
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To use or not to use AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 6

When you use Ajax techniques to update portions of a web page, the user gains responsiveness and fluidity. However, the user also loses the ability to bookmark and to use the browser's back button. Both of these drawbacks stem from the same fact: the URL does not change because the browser has not loaded a new page.
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How to Make an HTTP Request in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 6

In order to make an HTTP request to the server using JavaScript, you need an instance of a class that provides you this functionality. Such a class was originally introduced in Internet Explorer as an ActiveX object, called XMLHTTP. Then Mozilla, Safari and other browsers followed, implementing an XMLHttpRequest class that supports the methods and properties of Microsoft's original ActiveX object.
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Handling the Server Response in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 6

Remember that when you send the request, you provide the name of a JavaScript function that is designed to handle the response. eg:
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A complete sample program in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 6

Here is a complete AJAX example with a simple HTTP request. Our JavaScript will request an HTML document, test.html, which contains the text "I'm a test." and then we'll alert() the contents of thetest.html file.
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XML vs JSON in AJAX

  • 2009-01-17
  • Comments
  • Emiley J.
  • 6

If you are working with AJAX, you probably use either one of them or both of them. However there are pros and cons of using each of them. One major drawback of using XML is the speed. XML requires two tags for every data point. These additional data in transmission between the server and the client slows down the data exchange and wastes bandwidth.
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Related Tutorials

How to Make an HTTP Request in AJAX

Handling the Server Response in AJAX

A complete sample program in AJAX

XML vs JSON in AJAX

Creating JSON objects using Java in AJAX

The History of AJAX

To use or not to use AJAX

Archived Comments

1. Dear admin,
your Recaptcha design is not go

View Tutorial          By: surendra kumar sharma at 2013-02-02 05:58:35

2. thankx a lot...i've been trying so hard to learn t
View Tutorial          By: bhuwan at 2009-04-08 23:30:45

3. Hello,

I am still getting the below

View Tutorial          By: pavithra at 2012-03-25 19:33:38

4. Sir please can you tell me that how can i find occ
View Tutorial          By: Saad at 2013-01-20 11:14:39

5. hello all,
i have this error.
Except

View Tutorial          By: daniel at 2012-08-12 18:50:04

6. how doeas peek work in a c++ program
View Tutorial          By: odwa at 2008-02-29 02:44:19

7. can anybode tell me how can i make my own bluetoot
View Tutorial          By: Prasenjit at 2013-10-11 06:57:13

8. Till now, I have'nt done any certifications. I am
View Tutorial          By: Subhash at 2012-03-15 10:48:29

9. A phone is considered a good phone if all of the f
View Tutorial          By: harish at 2012-12-24 06:59:04

10. main is not needed for a simple program...

View Tutorial          By: manoj at 2012-05-29 17:46:08