AJAX Tutorials

The History of AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 153255

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
  • 153206

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
  • 153274

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
  • 153229

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
  • 153511

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.
  • 153193

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. @pankaj because u need to cast it. when u add num
View Tutorial          By: raziq at 2011-12-18 16:06:09

2. i am new in java so pls send insrutions in java
View Tutorial          By: shefeeja at 2012-10-09 02:22:15

3. in this statement "void Reverse(string &t
View Tutorial          By: vinay at 2012-12-13 16:41:59

4. Hi... very nice tute... Thanks..
I am worki

View Tutorial          By: anuj at 2013-03-15 06:12:46

5. I tried this code,but is showing this error

View Tutorial          By: anju at 2009-05-22 07:42:11

6. Thanks.I was searching the internet for a lot of t
View Tutorial          By: Habi at 2011-12-22 07:43:51

7. Design program with given algorithm---


View Tutorial          By: siddhant at 2014-10-11 13:19:25

8. very nice thank you so much my dude
View Tutorial          By: mohd at 2010-07-28 02:40:23

9. hi, this is a good example and this rely helpful i
View Tutorial          By: Dhaval PATOLIYA at 2015-09-08 06:55:38

10. Well the code is good but what if students start e
View Tutorial          By: nitin kumar sharma at 2015-07-15 06:58:18