1745372 - Implement AbortSignal.throwIfAborted

Status: RESOLVED FIXED

(Core :: DOM: Core & HTML, enhancement)

Description

[Anne (:annevk)]

Convenience method for web developers writing signal-accepting operations.

Discussion: https://github.com/whatwg/dom/issues/927
Standard change: https://github.com/whatwg/dom/pull/1034
Tests: https://github.com/web-platform-tests/wpt/pull/31947

Comment 1

[Tom S [:evilpie]]

Attachment: Bug 1745372 - Implement AbortSignal.throwIfAborted. r?saschanaz

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/66f8b8d530f4
Implement AbortSignal.throwIfAborted. r=saschanaz,emilio

Comment 3

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/66f8b8d530f4

Comment 4

[Hamish Willee]

FF97 docs work for this can be tracked in https://github.com/mdn/content/issues/11593

This is mostly just browser compatibility update and a page for this method: https://github.com/mdn/content/pull/11804

For the page I just used the simple async polling example from the spec (which checks the signal and throws on each iteration of a loop before executing the function again).

Are there any other cases where this might be useful? Is calling this method how a developer might "generically" implement an abort in their own APIs that take a signal?

Comment 5

[Anne (:annevk)]

Hey Hamish, yeah, that's correct. There's two examples in the specification to that effect:

• https://dom.spec.whatwg.org/#aborting-ongoing-activities-example
• https://dom.spec.whatwg.org/#example-throwifaborted

Comment 6

[Hamish Willee]

Thanks very much @annevk. I've tried to capture that in https://github.com/mdn/content/pull/11907.