From: Love U Ruby <lists@...>
Date: 2013-05-20T14:54:02+09:00
Subject: Re: Enum#each issue

From the 
Doc:http://www.ruby-doc.org/core-1.9.3/Enumerator.html#method-i-feed

Enum#feed: Sets the value to be returned by the next yield inside e.If 
the value is not set, the yield returns nil.This value is cleared after 
being yielded.

I tried one example but it is not the one I think to understand the 
`#feed` method.

a = [1,2,3,4].to_enum
p a.next #=> 1
a.feed 'foo'
p a.next #=> 2 , I expected here 'foo'

Can anyone give me a good example to understand how the `#feed` method 
works?

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