Enum idea (JS)

README.md

I wanted to have an enum class that would 1) allow me to create enum with arbitrary number of members and 2) allow to test any object to be a member of particular enum.

Enum.js

class Enum {
    static create(...members) {
        class DerivedEnum extends Enum {
            static contains(member) {
                return member instanceof DerivedEnum;
            }
        }
        
        for (let member of members) {
            DerivedEnum[member] = new DerivedEnum();
        }
 
        return DerivedEnum;
    }
}