AJAX Tutorials

The History of AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 252

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
  • 253

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
  • 255

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
  • 254

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
  • 255

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.
  • 252

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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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. it is very useful but if you give simple programs
View Tutorial          By: krishnakumar at 2008-05-21 08:51:14

2. can any plz tell me how to create a calculator in
View Tutorial          By: sam at 2010-11-13 06:53:04

3. @Adam:
CompareTo returns the difference of

View Tutorial          By: Azher at 2010-01-29 12:23:39

4. To make this work with out error I had to add:
View Tutorial          By: Jester at 2009-03-26 15:25:59

5. Hi there, I fixed the above (non-working) example
View Tutorial          By: JavaBoy at 2011-09-24 05:41:19

6. Superb article
View Tutorial          By: Raj at 2015-01-29 11:18:22

7. Hi got an error while executing :

j

View Tutorial          By: Hi, at 2009-07-06 01:09:35

8. Amazing new function atoi() , it shows c,c++ are p
View Tutorial          By: Hari at 2009-05-05 22:20:17

9. two of them are equal and third one is less than b
View Tutorial          By: nani at 2011-10-28 10:55:58

10. hi

im trying to run this project an

View Tutorial          By: VoyRufino at 2010-01-26 10:03:11