Object Creation Methods

What object composition pattern is shown here?

const mixin = {
  sayHi() { return `Hi, ${this.name}`; },
  sayBye() { return `Bye, ${this.name}`; }
};

class Person {
  constructor(name) {
    this.name = name;
  }
}

Object.assign(Person.prototype, mixin);

Inheritance
Mixin Pattern
This demonstrates the Mixin pattern: 1) Combines methods from different sources, 2) Enables code reuse without inheritance, 3) Adds behavior to existing classes, 4) More flexible than classical inheritance, 5) Can mix multiple behaviors together, 6) Common pattern for sharing behavior across unrelated classes.
Decorator Pattern
Module Pattern

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