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On Nov 16, 2011, at 11:27 PM, Mark S. Miller wrote:
>
>
> On Wed, Nov 16, 2011 at 11:24 PM, David Herman <dher...@mozilla.com> wrote:
> Someone who shall remain nameless shot this down when I floated it privately.
> But I just have to throw this out there, because I kind of can't stop myself
> falling in love with it...
>
> We used to have this (mis-)feature for dynamically extending scope chains,
> and despite being ill-conceived, it did have this elegant syntax spelled
> "with." In ES5 strict, we banned that feature, and it's not coming back for
> ES6, or ever.
>
> Now we want a (good) feature for dynamically extending prototype chains. And
> here's this old keyword, just lying around unused...
>
> obj with { foo: 12 } with { bar: 13 } with { baz: 17 }
>
> I don't get it yet. What do you mean by "dynamically extending prototype
> chains"? What does the above expression do and evaluate to?
>
>
>
> So? Who's with me?
>
> Dave
>
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>
>
>
> --
> Cheers,
> --MarkM
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