From: Ruby Freak <twscannell@...>
Date: 2008-03-25T12:24:53+09:00
Subject: Passing params to Map method

Hi and thanks in advance for your help.
I have been pounding every Ruby and Rails book I can find, desperately
attempting to move beyond newbie status.My latest foray has taken me
into the native 2.0.2 Rails::Info module. I am reading what I think is
native ruby code but I can't seem to figure out what is being passed
to map and find. Could someone please explain (name, ) in the
following code?

Thanks again.

module Rails
  module Info
    mattr_accessor :properties

    class << (@@properties = [])
      def names
        map {|(name, )| name}
      end

      def value_for(property_name)
        find {|(name, )| name == property_name}.last rescue nil
      end
    end