The Specification contravariant functor

added by DotNetKicks
9/9/2021 1:15:33 PM

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An introduction for object-oriented programmers to the Specification contravariant functor. This article is an instalment in an article series about contravariant functors. It assumes that you've read the introduction. In the previous article, you saw an example of a contravariant functor based on the Command Handler pattern. This article gives another example.


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