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> Global Variables > Gone. Period. That's pretty extreme. What is supposed to replace them?

• lobster_johnson 13y ago
  It's not really extreme. You can, and should, easily provide globals through attributes on classes and modules (which are globals themselves): module Foot @size = 10 class << self attr_accessor :size end end Foot.size = 8 ActiveSupport gives you "mattr_accessor" and "class_attribute" to accomplish the same thing with less code. In my opinion, class/module-level attributes are useful enough that it ought to be provided by the language itself. Edit: Come to think of it, most people, that I have seen, use globals to set constants. That currently has perfectly good syntax: module Foot SIZE = 10 end print Foot::SIZE
  • cheald 13y ago
    Sans ActiveSupport, you can achieve the same things by just opening class/module eigenclass: module Foo class << self attr_accessor :bar end end Foo.bar = "baz"
    • lobster_johnson 13y ago
      Sure, but wasn't that exactly what I wrote in my first example?
      • cheald 13y ago
        Oy, it is. Sorry; my brain is apparently missing its reading comprehension hat today.