Because a promise is not a control surface of the asynchronous action
fulfilling it; confuses owner with consumer.
https://stackoverflow.com/a/41417429/918910
.: Jan-Ivar :.
On 7/31/17 7:35 AM, T.J. Crowder wrote:
Related: https://esdiscuss.org/topic/how-about-awaiting-arrays
(particularly the discussion of `await.race`), since effectively
you're doing a race between a timeout and each chunk. Also relevant is
the former work on cancelling promises, now withdrawn. (Can anyone
point me at *why* it was withdrawn?)
-- T.J. Crowder
On Mon, Jul 31, 2017 at 6:10 AM, kai zhu <[email protected]
<mailto:[email protected]>> wrote:
the timeout handler will not work as advertised, e.g. what if io /
db issues causes a network stream to intermittently respond in
intervals far greater than 30000ms or not at all?
> On Jul 31, 2017, at 7:26 AM, James Browning
<[email protected] <mailto:[email protected]>> wrote:
>
> It'll look something like this:
>
> ```javascript
>
> async function consumeReadableStream(stream) {
> const start = Date.now()
> for await (const chunk of stream) {
>
> /* Do whatever you want with the chunk here e,g, await other
> async tasks with chunks
> send them off to wherever, etc
> */
>
> if (Date.now() - start > 30000) {
> throw new Error('30000 ms timeout')
> }
> }
> /* Instead of callbackOnce the returned promise from this
function
> itself can be used */
> }
>
> ```
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--
.: Jan-Ivar :.
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