AJAX Tutorials

The History of AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 974

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
  • 974

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
  • 974

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
  • 974

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
  • 974

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.
  • 975

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. sir, could you please tell me about minimum and ma
View Tutorial          By: priya dwivedi at 2012-01-04 15:01:03

2. Simple and easy code..........
View Tutorial          By: mandalson at 2011-12-24 06:50:38

3. Hello , How could i Run java.comm on eclipse

View Tutorial          By: Fiars at 2011-04-11 04:53:45

4. Hello Friends, i am getting an error in following
View Tutorial          By: Albin at 2008-07-10 23:49:33

5. hello sir , i m student of mca . i am working on S
View Tutorial          By: Pallavi at 2013-04-06 13:53:54

6. very Good machi.......
View Tutorial          By: Janani at 2013-03-04 06:37:47

7. Works great! Thanks!
View Tutorial          By: Ewa at 2013-06-19 10:52:07

8. wow! thats nice, java program can read and write t
View Tutorial          By: Mutare at 2011-02-25 22:58:09

9. Thanks
muchas gracias
Excellent

View Tutorial          By: Alfredo at 2010-05-31 09:00:36

10. the 2 not required lines
1) #include

View Tutorial          By: saurabh at 2012-02-20 06:33:57