Dynamic Patch
the send method could be used to call methods
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obj.send(:my_method, params)
Dynamic Method
the define_method method could be used to create instance method
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class Foo do
define_method(name) do
info = @data_source.send "get_#{name}_info", @id price = @data_source.send "get_#{name}_price", @id result = "#{name.capitalize}: #{info} ($#{price})" return "* #{result}" if price >= 100
result
end
end
the instance_method could be used to call an instance method
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f = Foo.new
f.instance_method(:method_name)
Remove Method
the undef_method method could be used to remove method, it would remove both receiver’s methods and inherited methods
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undef_method method_name
the remove_method method is similar, but it leaves the inherited methods
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remove_method method_name