From: "David A. Black" <dblack@...>
Date: 2005-02-22T22:24:25+09:00
Subject: Re: Proposal for nil, 0, and "" in an if statement

Hi --

On Tue, 22 Feb 2005, Dan Fitzpatrick wrote:

> The following was derived from a portion of the destrutive! operations 
> thread.
>
> Here is a proposal for evaluating "", 0, and nil in an if statement:
>
> Add empty? to NilClass and Fixnum
>
> class NilClass
>  def empty?
>    true
>  end
> end
>
> class Fixnum
>  def empty?
>    self == 0 ? true : false
>  end
> end

Or:

   class Fixnum
     alias :empty? :zero?
   end


David

-- 
David A. Black
dblack@wobblini.net