Proposal to add symbol: "hasInstanceStrict"

Aleksander Efremov mr.efrem at
Mon Feb 19 17:16:53 UTC 2018

I also mentioned in my first message that I offered to do call that symbol
when appears assignmen of variable or const: when appears creating and
assignment parameters of function and also when appears assignment of
result function to the variable or const. I just left it in the single
example. But in real case instead of sum function can be fetch. Or vice
versa we want to check in the our library function passed parameter outside.

19 февр. 2018 г. 21:04 пользователь "Aleksander Efremov" <mr.efrem at>

> I gave `fetch` you just for example that function result which I want to
> check. Also on the Node.js I wanted be to check results of `http` module.
> It just examples of black boxes which impossible to check via decorators
> how you offered.
> `fetch` I assumed to use with `await`.
> 19 февр. 2018 г. 20:58 пользователь "T.J. Crowder" <
> tj.crowder at> написал:
>> On Mon, Feb 19, 2018 at 4:50 PM, Aleksander Efremov <mr.efrem at>
>> wrote:
>> > In my first example you can found what I mean.
>> Yes, I looked at your first example (and every other example in the
>> thread) before replying. As it had nothing to do with `fetch`, but you
>> specifically mentioned `fetch` in your message, I assumed you were asking
>> something about `fetch`. If you were talking about the `const` in `const c:
>> PrimitiveNumber = sum(1, 2);`, why say "`fetch`"?
>> -- T.J. Crowder
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