Responding to Calls to Undefined Methods : method_missing « Reflection « Ruby

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Ruby » Reflection » method_missing   Responding to Calls to Undefined Methods class MyClass   def defined_method     'This method is defined.'   end   def method_missing(m, *args)     "Sorry, I don't know about any #{m} method."   end end o = MyClass.new o.defined_method                         # => "This method is defined." o.undefined_method # => "Sorry, I don't know about any undefined_method method."   Related examples in the same category 1.  Convert all system command to all class method 2.  Override method_missing method to provide meaningful error message 3.  Create a new class and override the method_missing method 4.  If method does not exist, call the default one 5.  Create new method dynamically

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