From: David Alan Black <dblack@...>
Date: 2001-10-26T01:25:20+09:00
Subject: [ruby-talk:23314] Re: why the @ s ?

Hello --

On Fri, 26 Oct 2001, Tobias Reif wrote:

> Dave,
>
> thanks for your explanation. But I'm still confused: (thanks for your
> patience)
>
>  > a = 10
>  > def fred
>  >   p a    #=> -:3:in `fred': undefined local variable or method `a'
>  > end
>
> with ruby 1.6.3 (2001-03-19) [i386-cygwin] :
> --------------------
> a = 10
> def fred
>    p a      #=> no error
> end
> --------------------


Did you try calling fred? :-)

>
> works:
> --------------------
> var01 = 'var01'
>
> def print_var var
>    print var
> end
>
> print_var var01 #=> prints 'var01'
> --------------------

Here you've returned to the scope in which you started, so var01
is defined and can be used.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav