You are tasked with designing a class structure where some classes share some common behavior but also have their unique behaviors. How would you design such a class structure?

  • Use closures to encapsulate common behavior
  • Use inheritance to create a base class with common behavior and derive specialized classes from it
  • Use interfaces to define common behavior and have classes implement those interfaces
  • Use mixins to mix common behavior into different classes
Mixins are a common design pattern in JavaScript for sharing common behavior among classes. You can create mixins that contain common methods and then mix them into different classes to give them that behavior.
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