From: Tobias Reif <tobiasreif@...>
Date: 2001-10-26T00:04:50+09:00
Subject: [ruby-talk:23303] why the @ s ?

Hi,

on my journey from Rubynewbie to Whoknowswhat, I'm having difficulties 
in understanding variable scope.

In
http://www.rubynewbies.com/~tobi/howto/show_source.rb?file=show_source.rb&format=.xhtml
http://www.rubynewbies.com/~tobi/howto/show_source.rb?file=show_source.rb&format=.txt

I declare 3 variables whose name starts with an @ sign. When I omit any 
of the three @ signs, the Program doesn't work anymore.
Why?

It's no class, and all three variables are declared @ the toplevel, so I 
thought the @ signs are not necessary. (The vars are no instance vars, 
and they are not declared inside control structures that would limit 
their scope)

I wonder if it's too obvious or too complex to get it myself...

Tobi

-- 
Tobias Reif
http://www.pinkjuice.com/myDigitalProfile.xhtml

go_to('www.ruby-lang.org').get(ruby).play.create.have_fun
http://www.pinkjuice.com/ruby/