From: Jeroen Lodewijks <lists@...>
Date: 2012-09-21T17:46:32+09:00
Subject: Re: Class variables

Thank you very much for all your replies.
I think I did 2 things wrong:

1) I used new, rather than initialize
2) I thougt the syntax for a class variable was

class Deck
  @deckarr = [1, 2, 3, 4, 5]

  def initialize
    # something
  end

  def print_all
    @deckarr.each do |card| puts card end
  end
end

but it is:

class Deck

  def initialize
    @deckarr = [1, 2, 3, 4, 5]
  end

  def print_all
    @deckarr.each do |card| puts card end
  end
end

--Quote
@@suits = ['C', 'D', 'H', 'S']

isn't what you would expect, so no one uses them.  Rubyists use class
instance variables instead, e.g
<snip>
--End quote

From what I can see online
@@suits = ['C', 'D', 'H', 'S'] creates the array only once no matter how 
many instances you have of the object. Is that not a good thing?
I don't understand why nobody is using this?

isn't what you would expect, so no one uses them.  Rubyists use class
instance variables instead, e.g.

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