FF155 Relnote: Promise.allKeyed() and Promise.allSettledKeyed()

[hamishwillee]

FF155 supports Promise.allKeyed() and Promise.allSettledKeyed() in https://bugzilla.mozilla.org/show_bug.cgi?id=2057270.

This adds a release note.

Related docs work can be tracked in #45186

[github-actions]

Preview URLs (1 page)

• /en-US/docs/Mozilla/Firefox/Releases/155

Flaws (2)

Found an unexpected or unresolvable flaw? Please report it here.

URL: /en-US/docs/Mozilla/Firefox/Releases/155
Title: Firefox 155 release notes for developers (Beta)
Flaw count: 2

• macros:
  • Macro jsxref produces link /en-US/docs/Web/JavaScript/Reference/Promise.allKeyed() which doesn't resolve
  • Macro jsxref produces link /en-US/docs/Web/JavaScript/Reference/Promise.allSettledKeyed() which doesn't resolve

External URLs (1)

URL: /en-US/docs/Mozilla/Firefox/Releases/155
Title: Firefox 155 release notes for developers (Beta)

• https://bugzil.la/2057270 (1 time) (Note! This may be a new URL 👀)

[dipikabh]

Thanks, @hamishwillee. In the interest of time, I've ported the useful bits from your PR as suggestions on #45270. Closing this in favor of that one.

Please feel free to add there if I've missed something.

[hamishwillee]

Thanks @dipikabh - very much appreciated.

FWIW (i.e. I don't care), but I am never sure if I should link to the associated proposals, which is why I didn't:

The {{jsxref("Promise.allKeyed()")}} and {{jsxref("Promise.allSettledKeyed()")}} static methods are now supported, as defined in the TC39 await dictionary proposal.

On one hand it's nice to tell an origin story and a few people will likely recognise the proposal name. On the other hand,

• if we've done our job the proposal should be irrelevant
• the proposal defines the implementation but it is quite possible that it doesn't match the front page of the proposal docs, and the specs can move on after this, leading to drift.