From: Robert Klemme <shortcutter@...>
Date: 2009-10-14T04:10:05+09:00
Subject: Re: Enumerating and mixin.

On 13.10.2009 01:47, Rajinder Yadav wrote:

> OK I managed to sweet the code down to the following, is there anything else I 
> missed?
> 
> class Vowels
>     include Enumerable
>     def initialize
>        @list = %w(u e a o i)
>     end
> 
>     def each
>        @list.each { |item| yield item }
>     end
> end
> 
> obj = Vowels.new
> 
> obj.each { |s| print s }
> puts ""
> obj.sort.each { |s| print s }
> puts ""

Two notes: you can actually pass the block directly on to method each of 
Array.

def each(&b)
   @list.each(&b)
end

And: conventionally #each returns self.

Taking both together you could do

def each(&b)
   @list.each(&b)
   self
end

Kind regards

	robert

-- 
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