Stage 4 Criteria

[ljharb]

• Tests merged
• Implementations
  • v8 (Chrome 117, Sept 2023): https://bugs.chromium.org/p/v8/issues/detail?id=12499 / https://chromium-review.googlesource.com/c/v8/v8/+/4681309
  • sm: (Firefox v119) https://bugzilla.mozilla.org/show_bug.cgi?id=1792650
  • jsc: https://webkit.org/blog/14390/release-notes-for-safari-technology-preview-174/
  • serenity: LibJS: Implement the Array Grouping proposal SerenityOS/serenity#11412 / LibJS: Re-implement the Array Grouping proposal as static methods SerenityOS/serenity#19945
  • es-shims: https://npmjs.com/object.groupby / https://npmjs.com/map.groupby
• spec PR
  • editor-approved
• consensus

[linusg]

Implemented in LibJS/Ladybird as of SerenityOS/serenity#11412 and updated to static methods in SerenityOS/serenity#19945.

[syg]

V8 has implemented and shipped the static version: https://chromium-review.googlesource.com/c/v8/v8/+/4681309

It will be in 117, which will hit stable in mid-September 2023.

[jridgewell]

Implemented in Safari Tech Preview 174, but not enabled

[jridgewell]

Firefox tracking issue: https://bugzilla.mozilla.org/show_bug.cgi?id=1792650, not implemented

[ljharb]

Firefox will be shipping this proposal in v119, in October.

[ljharb]

A Safari rep reports it'll be in the next version of Safari.

[ljharb]

We achieved stage 4 today at TC39. tc39/proposals@e11ea25