Oh, thanks Claude, I missed that. I guess it is all replicable then.

On Sat, Aug 4, 2018 at 10:28 PM Claude Pache <[email protected]> wrote:

>
>
> > Le 5 août 2018 à 04:14, Darien Valentine <[email protected]> a
> écrit :
> >
> >
> > However it is ultimately not possible to replicate because there is no
> possible brand test for [[BooleanData]].
>
> Per spec, checking whether `Boolean.prototype.valueOf.call(obj)` throws
> will test whether an object has [[BooleanData]] internal slot.
>
> —Claude
>
>
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