From: Brian Candler <b.candler@...>
Date: 2010-04-18T17:59:28+09:00
Subject: Re: Undifined local variable or method error

Gavin Kistner wrote:
> On Apr 17, 11:30�am, Simbolla Simbolla <vinod...@gmail.com> wrote:
>> for main:Object(NameError)"
> If you want h to be a global variable, accessible everywhere, prefix
> it with a dollar sign:
> 
> $h={}
> def foo
>   $h[1]=0
>   $h
> end
> foo
> p $h
> #=> {1=>0}

But usually it would be better instead to:

(1) pass h as an argument to method foo; or
(2) define a class with instance variable @h

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