From: Sean O'Dell <sean@...>
Date: 2004-07-03T03:04:33+09:00
Subject: Re: How to detect if variable has been defined yet?

On Friday 02 July 2004 10:49, Randy Lawrence wrote:
> Hi,
>
> I'd like to detect if a variable has been defined yet.  Is this possible
> in Ruby or mod_ruby?
>
> For example, I'd like to do the following:
>
> if $total.exists
>     $total = $total + 1
> else
>     $total = 0
> end

if defined?($total)
    $total = $total + 1
else
    $total = 0
end


	Sean O'Dell