From: "David A. Black" <dblack@...>
Date: 2004-07-03T03:03:26+09:00
Subject: Re: How to detect if variable has been defined yet?

On Sat, 3 Jul 2004, David A. Black wrote:

> I think you'd have to use defined?, or conditionally initialize the
> variable:
> 
>   x ||= 0
>   x += 1

Actually to get what Randy wanted it would have to be:

  x ||= -1
  x += 1

or

  x = (x ||= -1) + 1


David

-- 
David A. Black
dblack@wobblini.net