I think this did not reach the mailing list to the W3:
https://esdiscuss.org/topic/cancelable-promises#content-9
Actually the result cancellation is different from promise cancellation.
First is full of implementation details, thus you are talking about smart
cancellation. It is not smart, is the
Another thread here brought up the challenge of supporting cancellation in
an async environment. I spent some time on that particular challenge a few
years ago, and it turned out to be bigger and more interesting than it
appeared on the surface. In the another thread, Ron Buckton pointed at the
.Ne
>
>
> > So again the question is: can we come up with a cancellation-token-style
> pattern which is JS-ergonomic?
>
> I tried to discuss some stuff in that direction at
> https://github.com/slightlyoff/ServiceWorker/issues/625#issuecomment-75342617
>
>
I think using a promise in place of a "token i
From: Kevin Smith [mailto:zenpars...@gmail.com]
> So again the question is: can we come up with a cancellation-token-style
> pattern which is JS-ergonomic?
I tried to discuss some stuff in that direction at
https://github.com/slightlyoff/ServiceWorker/issues/625#issuecomment-75342617
>
>
> That design seems far cleaner than adding functionality directly to
> promises, but can it be made JS-ergonomic?
>
>
The question we need to consider when it comes to a general design for
canceling async tasks is this: how does one offer cancellation when
defining an async task using an asyn
Well, if the user caches the result (in order to pass it to another
iterator) they'll get unexpected results.
Iterator A yields:
```js
{value: 1, done: false}
{value: 2, done: false}
{value: 3, done: false}
{value: 4, done: false}
```
There are two consumers for the iterator (sending the result
On Sun, Mar 1, 2015 at 3:28 AM, Allen Wirfs-Brock
wrote:
>
> If you want both a TCP-able from and a local (most closely enclosing
> callable thing) form then the later should also presumably also be
> applicable at the top level of functions.
>
> The 'in' meta property prefix in combination with
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