From: 7stud -- <bbxx789_05ss@...>
Date: 2011-05-13T03:53:58+09:00
Subject: Re: where does the pure method defined when starting irb

Also:

puts RUBY_VERSION  #=>1.8.6

puts self       #=>main
puts self.class #=>Object

def hello
end

puts Object.private_instance_methods.grep(/^h/) #=>hello

puts self.public_methods.include?("hello")
#=>false

#puts self.singleton_class.instance_methods.include?(:hello)

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