These use cases drop in time and again: checkbox lists; live login validation; dynamic form rows; server-side processing progress indicators; list reordering using drag and drop; and more… As always, there are a lot of terrible ways to achieve those, several decent ones, and precious few really good takes. This session will review several such use cases and detail various ways to implement them, contrasting the ugly and the beautiful, showing useful reflexes and rules of thumb, with a special focus on performance and maintenance.

1. Best-practice solutions for
common Ajax use-cases
with Prototype
Christophe Porteneuve
CTO, Ciblo + Prototype Core member

2. Hi
• Christophe, 30, French, Paris-based
• Day job = mostly Rails + Prototype/Scripty
• Prototype Core since January 2007
• The Bungee Book

3. So what’s this about?
• Prototype’s one of the most popular JS
libraries out there
• It’s know a few “growth spurts,” but people
haven’t always taken the time to catch up
• A lot of sub-par / suboptimal code out
there, that should be rethought
• A few well-honed patterns will get you far.