Abstract:Design patterns are standard solutions to common design problems. The famous Gang of Four book describes more than twenty design patterns for the object-oriented paradigm. These patterns were developed more than twenty-five years ago, using the programming language concepts available at that time. Patterns do not always fit underlying domain concepts. For example, even when a concrete strategy is a pure function, the classical strategy pattern represents this as a separate subclass and as such obscures the int… Show more
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