From: Sebastian Hungerecker <sepp2k@...>
Date: 2008-06-15T04:06:58+09:00
Subject: Re: Definning "to_s" in a class -  inexpected result

Andrés Suárez wrote:
>  def to_s
>    @cards.map{ |card| print card}
>   end

to_s needs to return a string otherwise puts will not use it. Your to_s 
returns an array (as map returns an array) - an array of nils to be precise 
(because print returns nil).
Also to_s should not print anything to the screen.

HTH,
Sebastian
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