From: 7stud -- <bbxx789_05ss@...>
Date: 2011-03-29T08:39:39+09:00
Subject: Re: NoMethodError: undefined method `traverse' for nil:NilClass

def my_method(arr)
  arr.each do |element|
    puts element
  end
end


data = nil
my_method(data)

--output:--
Line 2:in `my_method': undefined method `each' for nil:NilClass 
(NoMethodError)
  from t.rb:9

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