From: James Edward Gray II <james@...>
Date: 2006-04-13T22:26:04+09:00
Subject: Re: Range#size

On Apr 13, 2006, at 8:20 AM, Meinrad Recheis wrote:

> dear list,
>
> does anyone object to adding the method :size to class Range?
>
> class Range
> 	def size
> 		max-min+1
> 	end
> end

The problem with it is that it adds method dependancies to Range:

 >> class Range
 >>   def size; max - min + 1 end
 >> end
=> nil
 >> ("AA".."BB").size
NoMethodError: undefined method `-' for "BB":String
         from (irb):2:in `size'
         from (irb):4
         from :0

James Edward Gray II