From: Daniel Schierbeck <daniel.schierbeck@...>
Date: 2005-10-28T21:12:04+09:00
Subject: Re: Cleaner syntax for .map (is there already a way, or ruby2 idea?)

David A. Black wrote:
> I know that people.every could return
> some kind of generator or enumerator, which could then be fed
> "email_addr" symbolically... 


module Enumerable
   def every
     enum, obj = self, Object.new
     obj.define_method :method_missing do |name, *args|
       enum.map { |element| element.send(name, *args) }
     end
     return obj
   end
end

ary = ["john", "sylvia", "sarah"]
ary.every.capitalize!

puts ary.join(", ") -> John, Sylvia, Sarah



Cheers,
Daniel