3 Linked, compositional object models

This chapter covers

  • Understanding the Objects Linked to Other Objects (OLOO) pattern of behavior delegation with linked objects
  • Combining classes with mixins for concatenative dynamic extension
  • Using Object.assign and the spread operator to build new objects

Class inheritance is very rarely (perhaps never) the best approach in JavaScript.

—Eric Elliot

In chapter 2, we looked at some of the scaffolding needed to create prototype chains to model inheritance and how classes streamline this process. Remember that the goal of using inheritance is to improve reusability. Now we’ll continue the topic of assembling your objects to achieve the same level of code reuse, but in a way that doesn’t require you to ...

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