Null object pattern: Difference between revisions

Revision as of 04:30, 29 June 2024

Revision as of 05:16, 1 July 2024

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It can be regarded as a special case of the [[State pattern]] and the [[Strategy pattern]].

It is not a pattern from ''[[Design Patterns (book)|Design Patterns]]'', but is mentioned in [[Martin Fowler (software engineer)|Martin Fowler's]] ''Refactoring''<ref>{{cite book

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=> nil

</syntaxhighlight>

Attempts to directly [[Monkey patch|monkey-patch]] NilClass instead of providing explicit implementations give more unexpected side effects than benefits.

===JavaScript===