From: wannes <oeaniz@...>
Date: 2005-07-29T19:22:05+09:00
Subject: Re: [newbie] make local var visible

On 29/07/05, "Pe�a, Botp" <botp@delmonte-phil.com> wrote:
> #sample script---------------->8
> foo=["a","b","c"]
> 
> def mfoo
>     foo.each do |f|
>         p f
>     end
> end
> 
> # go-go-go!
> mfoo
> #end sample script------------>8
> >test.rb:4:in `mfoo': undefined local variable or method `foo'
>         from test.rb:9
> So how can i force foo visible to mfoo()?

def mfoo ... end creates a new scope (or how would you say that in
proper naming), and thus forgets about local variables defined
elsewhere, you can't access foo from within the method.

I think you have 2 options here (maybe more, but these are the ones I
can come up with as a newbie myself):
1) pass foo as an argument.
  def mfoo(foo) ... end
  mfoo(foo)
2) make foo an instance-variable
  @foo = [..]
  def mfoo
     @foo.each...
  end

grtz,
wannes