>>> The purpose would be defining a class whose instances don't have
Object.prototype on their prototype chain.  If "extends null" doesn't work,
then I think you'd have to do something like this to achieve the same?
>>>
>>>     function NullBase() {}
>>>     NullBase.prototype = Object.create(null);
>>>
>>>     class C extends NullBase {}
>>>

Can't this be solved by returning a null object from the constructor?

```js
class Null{
  constructor() {
    return Object.create(null);
}
}

class MyClass extends Null{

}
let foo = new MyClass();
foo.toString() //ReferenceError
```

Marius Gundersen
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Can't this be solved by returning a null object from the constructor?

```js
class Null{
  constructor() {
    return Object.create(null);
}
}

class MyClass extends Null{

}
let foo = new MyClass();
foo.toString() //ReferenceError
```