> const Person = Mammal <| {
> name: 'John Doe',
> constructor(sex,name) {
> super.constructor(sex);
> this.{name}
> }
> }
>
> console.log(typeof Person); //'object', not 'function'
> console.log(Person.name); //'John Doe'
>
> Person is the prototypal person. You would then really like to create new
> Person instances like:
>
> let joe = new Person('male','Joe Smith'); // means roughly joe =
> Object.create(Person).constructor('male','Joe Smith')
>
> console.log(joe.name); //'Joe Smith'
> console.log(Object.getPrototypeOf(joe).name); //'John Doe'
>
> However, new currently throws when applied to non-function objects. This is
> something I would like to fix for ES.next.
I’d still be a huge fan of that, e.g.:
operator new(proto, ...args) {
let o = Object.create(proto);
o.constructor(…args);
return o;
}
Obviously, you would use Person.isPrototypeOf(p) instead of p instanceof Person.
--
Dr. Axel Rauschmayer
[email protected]
twitter.com/rauschma
Home: rauschma.de
Blog: 2ality.com
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