From: "Ara.T.Howard" <ahoward@...>
Date: 2004-07-03T03:02:47+09:00
Subject: Re: How to detect if variable has been defined yet?

On Fri, 2 Jul 2004, gabriele renzi wrote:

> il Fri, 02 Jul 2004 17:40:40 GMT, Randy Lawrence <jm@zzzzzzzzzzzz.com>
> ha scritto::
>
>
> defined? may be useful. Anyway, writing:
>
> if variable
> variable+=1
> else
> variable=0
> end
>
> should do just fine

unless variable == nil has semantics.

-a
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