[jeffadotio]

I like classes. But you must understand your code, even before you write it. If the syntax that you use (the author is using TS, and JS/TS classes are syntactic sugar) matches your mental model of the program then I would say that you are choosing the correct syntax.

If it’s your library and your responsibility then I will try to read it your way. Comprehensive testing and consistency in style are more important than any specific syntax or abstraction.