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Last Update On:17-03-2026

Ajax

Introduction of Ajax

  • Request object Creation
  • Requesting the data
  • Asynchronous data transfer
  • Using the readyState property
  • Callback function
  • Using inner HTML
  • Sending the request
  • Requesting the data
  • Error handling with try/catch
  • Understanding HTTP

Using Xml and Json in Ajax Applications

  • Introduction to XML
  • XML and the DOM
  • ResponseText Usage
  • Using responseXML
  • JSON vs XML
  • Basics of JSON
  • Using JavaScript literals
  • CSS with Ajax

Object-Oriented Javascript and Custom Ajax Objects

  • New operator
  • Object constructors
  • Prototypes
  • Custom Ajax objects
  • Ajax and forms
  • Encoding

Troubleshooting and Debugging Ajax

  • on error event handler
  • Debugging Ajax with Firebug
  • Tools for navigating the DOM
  • Firefox DOM Inspector
  • IE DOM Inspector
  • Mouseover DOM Inspector (MODI)
  • List of Live HTTP Headers
  • Explain HTTP Status Codes

Using Javascript Libraries and Creating A Widget

  • JavaScript libraries/frameworks
  • Three types of libraries/frameworks
  • DOM extension
  • Application conveniences
  • Widgets
  • Explain The Prototype JavaScript Framework
  • Using Prototypes Ajax Objects
  • Using an accordion widget to display an Ajax response

Working With Xml Feeds and Providing Feedback to the User

  • Working with XML News Feeds
  • RSS .9x
  • RSS 2.0
  • RSS 1.0
  • Atom
  • Using the Scriptaculous library for visual effects
  • The yellow fade technique
  • Drag and drop functionality

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