From: Steve Dogers <stevedogers@...>
Date: 2009-03-31T04:52:44+09:00
Subject: When to use instance variables @

Hi, I have a couple questions about instance variables in Ruby.
1) do i need to declare them at the top of my class file - I do
understand the accessors are automatic but I'm not sure if I can just
pull a @product in the middle of a function

2) do i need to use the @ to refer to them in the class. Would it work
without the @, and if so, how does it differentiate them from local
vars?

3) I've seen code where just below the class declaration, objects are
instantiated like product = Product.new - I don't see a @ sign, does
that mean it's a local var? How can a local var even exist at the class
level, outside a function?


Many thanks!
-- 
Posted via http://www.ruby-forum.com/.