One of the good parts of Ruby on Rails framework it is it’s helpers that come bundled in. For exampleRead the Rest…

BlueRidge is a Javascript testing plugin for applications written in Ruby in Rails. The plugin gives it’s user – Ruby on Rails developer a support for command-line and in-browser tests just like Rspec does, allowing for convenient testing of Javascript parts of Ruby in Rails web applications.

By default, Rails includes Prototype and Scriptaculous javascript libraries. It may happen that you may prefer jQuery. There is nothing impossible with rails.