Cancelable Promises: Why was this proposal withdrawn?

Re:Cancelable Promises: Why was this proposal withdrawn? by fareesh on Monday December 19, 2016 @09:20AM (#13211510)

What's a good existing way to deal with this use-case? Is there a useful library that wraps setTimeout / other logic to determine the quality of a user's internet connection in case of very poor connectivity (2G etc) ?

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Re:Cancelable Promises: Why was this proposal withdrawn? by jdesjean on Monday December 19, 2016 @09:41AM (#13211641)

The way to handle this case is to use Promise.race with 2 promises. The first promise is your logic. The second promise is rejected after a timeout. For more detail read the section "never calling the callback" from "you don't know js" book on "async" in chapter 3 https://github.com/getify/You-Dont-Know-JS/blob/master/async...

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Re:Cancelable Promises: Why was this proposal withdrawn? by soft_dev_person on Monday December 19, 2016 @10:37AM (#13212018)

But that doesn't actually cancel the request, and thusly the data is downloaded anyway? Or am I missing something?

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Re:Cancelable Promises: Why was this proposal withdrawn? by fareesh on Monday December 19, 2016 @09:46AM (#13211673)

Thanks I'll check it out

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Re:Cancelable Promises: Why was this proposal withdrawn? by fermuch on Monday December 19, 2016 @09:38AM (#13211625)

In react native, NetInfo has an api to detect network changes and I use that to stop all my setIntervals and start again with a different set of args, including wait time before calling again.

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