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Structural design patterns (Part 1)

  1. Abstraction (09:22)
  2. Adapter Design Pattern (06:17)
  3. Composite Design Pattern (12:15)
  4. Decorator Design Pattern (04:30)

Decorator Design Pattern

The decorator enables us to add functionality to an existing object without needing to create a new inheritance chain or update the prototype. The idea is to add functionality to items based on need instead of adding them to the object from the get-go. This can become very useful when you have multiple objects with partially shared functionality.
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