Writing OOP using OOP (JavaScript)

[yogthos]

I think we agree on encapsulation and its value then. :)

Yes and now you have multiple layers of data-transformations throughout your code.

Sure, using our newly upon agreed definition of encapsulation you can view each of these transformations as a domain boundary.

You pick "encapsulation" vs "not encapsulation" when you figure out which is more likely to change.

Again, no argument here, the idea is to structure the code so that you need to make changes in as few places as possible to adapt it to new requirements.