We emphasized how simple patterns such as Factory can greatly improve the flexibility of our code and how with Proxy, Decorator, and Adapter we can manipulate, extend, and adapt the interface of existing objects. Strategy, State, and Template, instead, have shown us how to split a bigger algorithm into its static and variable parts, allowing us to improve the code reuse and extensibility of our components. By learning the Middleware pattern, we are now able to process our data using a simple, extensible, and elegant paradigm. Finally, the Command pattern provided us with a simple abstraction
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