Quick Tour of Ajax and Some Web 2.0
Wednesday, April 25th, 2007Essential Tools:
Firefox Browser
FireBug Plugin
Tamper Data Plugin
Ethereal Network Protocol Analyzer
Web Developer Toolbar
Popular Sites that update without page refreshes:
Flickr store, search, sort, share photos
del.icio.us collections of web favorites
Google Suggest Search
Google Maps
Sites Closer to Home:
- minip XML and XSL
- quote updates
- personalization
- no toolkits for this example
- Retrieve using AJAX:
http://www.sconzo.com/web2.0/ajaxsimple.txt
- Prototype JavaScript Framework:
http://www.prototypejs.org
- Prototype Ajax.PeriodicalUpdater
- Google “ajaxfeeds” toolkit:
http://code.google.com/apis/ajaxfeeds/
- Source XML File:
http://www.sconzo.com/gridexample/activnyse.xml - JS schema for XML file:
http://www.sconzo.com/gridexample/xml-grid.js - ExtJs Toolkit (also uses Yahoo toolkit):
http://extjs.com
- Uses ajax to check for unique id collisions
- retrieves updates without checking every second (using pub/sub oracle advanced queuing)