MoTTs_

The issue we complain about in JavaScript is one like this:

    class C {
        handleEvent() {}

        someMethod() {
            onEvent(this.handleEvent); // bad; "this" lost
            onEvent(this.handleEvent.bind(this); // ok
        }
    }

C++ requires the same thing. The bad case will even generate an error at compile time.

    class C {
        public:
            void handle_event() {}

            void some_method() {
                on_event(&C::handle_event); // bad; error
                on_event(std::bind(&C::handle_event, this)); // ok
            }
    };

In C++ you have to use bind too.

On the contrary, classes and inheritance in both Python and JavaScript behave basically the same. In Python, classes are objects (a building, not a blueprint), and inheritance is done by delegation.

https://i.imgur.com/p9Kw815.png

If you've used Python classes and inheritance all this time and never felt confused, then people can also use JavaScript's classes and inheritance and never feel confused.

> One of the last languages supporting prototype-based inheritance...

Actually, all this time, both Python and Ruby use what we would call prototype-based inheritance.

https://www.reddit.com/r/node/comments/6oqiyn/is_es6_complet...

https://www.reddit.com/r/learnjavascript/comments/6c6use/how...

Beware referencing or learning from Eric Elliott.

https://www.reddit.com/r/javascript/comments/6q2lk0/why_comp...

https://www.reddit.com/r/javascript/comments/5c5lkq/what_eri...

https://www.reddit.com/r/javascript/comments/3x91ac/why_not_...