JavaScript vs. Ruby

Paul Hammant (of PicoContainer and IoC fame) debated with Ruby fans about JavaScript vs. Ruby:

In a pub debate last night, I asked the remainder of the Chicago Ruby Users Group (chirb.org) whether they'd prefer Ruby to JavaScript in the browser as the language that supplements HTML to punch through the glass ceiling. The answer was a resounding no. JavaScript per se, and script.aculo.us in particular give you just about anything you need to supplement the feature limited HTML we all know and love.

Well, JavaScript on the client side is a given. However, it's the server side (in addition to client side) where most interesting things happen.