AJAX

AJAX

1. Uses in page requests

2. XMLHttpRequest

3. Process

   • Request created
   • Request sent
   • Callback function to process request
   • In web page without reloads

4. Methods

   • onreadystatechange
     • Handles function when state changes
   • readystate
     • ready position of the object
     • Values
       • 0 unintialised
       • 1 request set up
       • 2 request sent
       • 3 process request
       • 4 Complete