Factory Functions & Singleton Pattern

What advantages does this implementation offer?

const createUser = ({ name, email, role = 'user' }) => ({
  name,
  email,
  role,
  createdAt: new Date(),
  id: Math.random().toString(36).substr(2, 9)
});

It's faster than classes
It uses object destructuring for flexible parameters
This implementation offers flexibility through object destructuring: 1) It accepts parameters as a single object rather than ordered arguments, 2) It allows for optional parameters with default values, 3) The caller doesn't need to remember parameter order, 4) It's easy to add or remove parameters without breaking existing code, 5) It makes function calls more self-documenting through named parameters, 6) It enables a more declarative API for object creation.
It provides better inheritance
It creates singleton instances

Next Question (5/32)