From: BlueFox <blue_fox@...>
Date: 2006-02-24T00:03:36+09:00
Subject: What's mean? global variables

in test.rb
class Test
   def greeting
        "hello world!"
   end
end

def test
   $test ||= Test.new
end

and somewhere

puts test.greeting

what is mean of(outside of the class define)

def test
   $test ||= Test.new
end

and where can find any document?

thanks.