No problem. A good exercise I used to do was writing inheritence patterns first with pre-ES6 syntax, then constructors, then classes. They are, of course, interchangeable but it’s not wise to rehearse an anti-pattern.

EDIT: I said assign method earlier, I meant create. The assign method is the pre-ES6 way of creating object instances. Object.create() is used to inherit prototypes. That’s such a common mix-up that I’m embarrassed I didn’t catch it.