Dilemma in trying to obtain method list of child class from the parent constructor.

ES6-class-methods.js

// Let's call this fileA.js.
class Controller {
	constructor() {
		// This is the only way I can figure out how to do what I need, but it feels shitty.
		var routes = [];
		for (var route in this) {
			if (typeof this[route] === "function") {
				routes.push(route);
			}
		}

		// This returns ["constructor"], which is technically true.
		// This would work if I had access to User, but that's lame.
		Object.getOwnPropertyNames(Controller.prototype);
	}
}

module.exports = Controller;

////////////////////////////////////////////////////

// Let's call this fileB.js, which has access to the above class.
class User extends Controller {
	// I would like to avoid this class having a constructor at all.
	// constructor() {
	// 	super(Object.getOwnPropertyNames(User.prototype));
	// }

	get() {}

	"post list"(req, res) {
		res.json([2, 4, 6, 8]);
	}

	test(req, res) {
		res.view();
	}
}

module.exports = User;