Class and Instance Variables In Ruby // RailsTips by John Nunemaker

Class and Instance Variables In Ruby // RailsTips by John Nunemaker

Update (6/13/2008): I posted a bit more on the topic with example uses in the wild . First, let me preface this article with a fact: I’m new to Ruby, however, new is relative in that statement. I’ve been toying with Ruby for over a year but only in the last two months have I really started to code in Ruby and Rails. Ruby is the first language I have learned that has involved more than just picking up a new syntax. It has a few concepts that have taken/are taking a bit to grasp (such as iterators and inject). One concept that I think has finally clicked is class variables versus class instance variables. In the past whenever something was hard to grasp in a few minutes, I would just memorize how to use it and the situations that it was typically used in rather than the “what it does” and “why to do it.” The past weeks I have taken a stand against myself on this issue. I am ...

Full article: http://railstips.org/blog/archives/2006/11/18/class-and-i...