Mutable Proto

Brendan Eich brendan at
Thu Mar 21 13:57:56 PDT 2013

No 'with' required for SES AFAIK. Do you have a link? 
Cc'ing Mark in case he is not reading es-discuss frequently.


Brandon Benvie wrote:
> On 3/21/2013 11:39 AM, Brendan Eich wrote:
>> Andrea Giammarchi wrote:
>>> yes, SES, the non real world out there, needs __proto__ ... 
>>> shenanigans all over the world because of '__proto__' ain't important.
>> SES is deployed on major Google properties. I recall also Yahoo! but 
>> not sure if still up.
>> I think again you are out of line. Am I wrong?
> I don't agree with Andrea's sentiment, but this would still be 
> surprising to me. I would have thought that SES's use of `with` to 
> sandbox code (it does this right?) would destroy performance to the 
> point of being unusable in practice.
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