From: "Damián M. González" <lists@...>
Date: 2012-09-17T00:41:44+09:00
Subject: Re: Class variables or Class singleton variables?

Josh Cheek wrote in post #1076220:

> No, I'm saying don't do this. You can count dog legs since that's a
> single
> object, but don't implicitly try to track all of the dogs.

 Well but I don't see another way of keep track of the objects which
I'll have to work around. I do this in many cases:

class Foo
  @instances = []        #can be a Hash too, whatever
  class << self
    attr_accessor :instances
  end
  attr_accessor :nickname
  initialize(nickname)
    @nickname = nickname
    Foo.instances = Foo.instances.push(self)
  end
end

 Do you say that I do not have to do this? How can I keep track of the
instances so, if I want to refer them in the future? 'cause later meaby
I'll need to do this:

Foo.instances.each do |x|
  puts x.nickname
end

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