Note on When to Prefer Inheritance to Composition via Hillel Wayne

So here are the benefits of inheritance:

• Unlike composition, you can pass the subclass into functions expecting the parent class. • Unlike interfaces, you can reuse code from the parent class in the child class.

So, here’s when you want to use inheritance: when you need to instantiate both the parent and child classes and pass them to the same functions. That’s it. That’s the use case.

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FROM:

Hillel Wayne

When to Prefer Inheritance to Composition