edgar · November 10, 2015 22:51
diff --git a/hash_reject_regression.rb b/hash_reject_regression.rb
 class HashSubclass < Hash
  def foo
    self.reject {|k,v| k[:foo]}
  end
 end

 obj = HashSubclass.new
 new_obj = obj.foo
 new_obj.class

 # In ruby 1.9.3
 => HashSubclass

 # In Ruby 2.2+
 => Hash
	class HashSubclass < Hash
	def foo
	self.reject {\|k,v\| k[:foo]}
	end
	end

	obj = HashSubclass.new
	new_obj = obj.foo
	new_obj.class

	# In ruby 1.9.3
	=> HashSubclass

	# In Ruby 2.2+
	=> Hash