Only Use Inheritance If You Want Both of These

Inheritance gives us hierarchical reuse of code AND subtype polymorphism. In this video I argue that we should only ever use it if we want BOTH. 💚 BUY MY BOOK: https://leanpub.com/the-object-oriented-way/ https://patreon.com/christopherokhravi 📚 Recommended Reading: https://geni.us/nlbA6 (Head First: Design Patterns) https://geni.us/PsXmo (Design Patterns: Elements of Reusable Object-Oriented Software) Watch next: https://youtu.be/YaSMkzmc_sA https://youtu.be/TkUhAbbRCAE https://youtu.be/SeN1s65tRHY 00:00 Intro 00:21 Only Hierarchical Reuse 03:16 Only Subtype Polymorphism 05:37 Avoid Inheritance? 07:13 Couple To Abstractions 07:32 Example 08:36 Conclusion