Composition Alone Cant Replace Inheritance

• hasURL https://javascript.plainenglish.io/composition-alone-cant-replace-inheritance-606760f03d60
• hasTopic javascript Code Reuse
• hasSummaryPoints
  • Sometimes, you simply want to have all of your shared methods exist flat on the same object as you would get with inheritance.
    • But with P.A.I.L restrictions:
      • private
        • You are using inheritance purely for code reuse, not for public hierarchies.
      • base classes abstract
      • Isolate your base and child classes. Your base and child classes should be completely oblivious of the properties the other class provides. A child class should never override a base class’s methods or even access a property inherited from the base class, and a base class should never expect a child class to provide a missing method implementation
      • last resort. Only use restricted inheritance when no other options are good enough. Inheritance should be a dusty tool in the far corner of your tool shed