From: Ruby Rabbit <sentinel.2001@...>
Date: 2009-01-14T04:08:05+09:00
Subject: Implementing each and <=>

I have a data model and would like to let it be Enumerable. I want to
confirm if this is the way of implementing each and <=> :

    def each
      @list.each { |item| yield item }
    end

    def <=>(other)
      @list <=> other
    end

(let's just assume that @list is an array)

Thanks.
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