Null Object Pattern

With two or three of the same spice from different sources, the Masala Chef is in a quandary which to use at times

Such is the case with Null Object Pattern. We have two different discussions of this, Null object pattern at Wikipedia, and Null Object Design Pattern by J. Walker at Oberlin.

In addition to these reference, right here at RubyTapas is the only place to learn how Ensign Crusher discovered the Null Object Pattern and saved Captain Picard from the improbation of his peers in starfleet, in Episode #114: Null Object.

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— K. A. G. Sundaram,  Masala Chef