From: "David A. Black" <dblack@...>
Date: 2008-09-01T23:24:26+09:00
Subject: Re: Checking for 'nil' Class (not instance) variables?

Hi --

On Mon, 1 Sep 2008, John Pritchard-williams wrote:

> See below, what's the proper way of checking for initialized
> class-variables ?
>
> Cheers
>
> John
> --
> irb(main):031:0> @nosuchvar.nil?
> => true
> irb(main):032:0> @@nosuchvar.nil?
> NameError: uninitialized class variable @@nosuchvar in Object
>        from (irb):32
> irb(main):033:0>

defined?(@@nosuchvar)


David

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