ECMAScript proposals

ECMAScript Internationalization API Specification proposals

Active proposals

Proposals follow this process document. This list contains only stage 2 proposals and higher that have not yet been withdrawn/rejected, or become finished. Stage 2 indicates that the committee expects these features to be developed and eventually included in the standard.

Stage 3

Proposal	Author	Champion	Tests	_{Last Presented}
Legacy RegExp features in JavaScript	Claude Pache	Mark Miller Claude Pache	✅	_May 2017
Private instance methods and accessors	Daniel Ehrenberg	Daniel Ehrenberg Kevin Gibbons	✅	_{September 2020}
Class Public Instance Fields & Private Instance Fields	Daniel Ehrenberg Kevin Gibbons	Daniel Ehrenberg Jeff Morrison Kevin Smith Kevin Gibbons	✅	_{September 2020}
Static class fields and private static methods	Daniel Ehrenberg Kevin Gibbons Jeff Morrison Kevin Smith	Shu-Yu Guo Daniel Ehrenberg	✅	_{September 2020}
Hashbang Grammar	Bradley Farias	Bradley Farias	✅	_{November 2018}
Top-level `await`	Myles Borins	Myles Borins	✅	_June 2019
RegExp Match Indices	Ron Buckton	Ron Buckton	✅	_{November 2020}
`Atomics.waitAsync`	Lars Hansen	Shu-yu Guo Lars Hansen	✅	_{December 2019}
`.at()`	Shu-yu Guo Tab Atkins	Shu-yu Guo Tab Atkins	✅	_{November 2020}
Import Assertions	Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg	Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg	❓	_{November 2020}
JSON Modules	Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg	Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg	❓	_{January 2021}
Ergonomic brand checks for Private Fields	Jordan Harband	Jordan Harband	❓	_{January 2021}

Stage 2

Proposal	Author	Champion	_{Last Presented}
`function.sent` metaproperty	Allen Wirfs-Brock	HE Shi-Jun	_July 2019
Decorators	Daniel Ehrenberg	Yehuda Katz Brian Terlson Daniel Ehrenberg	_{September 2020}
`throw` expressions	Ron Buckton	Ron Buckton	_{January 2018}
Function implementation hiding	Domenic Denicola Michael Ficarra	Michael Ficarra	_June 2020
New Set methods	Michał Wadas Sathya Gunasekaran	Sathya Gunasekaran	_{January 2019}
Realms	Caridy Patiño Jean-Francois Paradis	Dave Herman Mark Miller Caridy Patiño	_{November 2020}
`ArrayBuffer.prototype.transfer`	Domenic Denicola	Shu-yu Guo	_July 2018
Sequence properties in Unicode property escapes	Mathias Bynens	Mathias Bynens	_{October 2019}
Temporal	Maggie Pint Matt Johnson Philipp Dunkel	Maggie Pint Philipp Dunkel Brian Terlson	_{November 2020}
collection normalization	Bradley Farias	Bradley Farias	_{January 2019}
Array.isTemplateObject	Mike Samuel, Krzysztof Kotowicz	Krzysztof Kotowicz	_{December 2019}
Iterator helpers	Gus Caplan	Michael Ficarra Jonathan Keslin	_July 2020
Explicit Resource Management	Ron Buckton	Ron Buckton	_{February 2020}
`Map.prototype.emplace`	Bradley Farias	Erica Pramer	_July 2020
Dynamic Import Host Adjustment	Mike Samuel, Krzysztof Kotowicz	Krzysztof Kotowicz	_{December 2019}
WeakRefs `cleanupSome`	Yulia Startsev Daniel Ehrenberg	Yulia Startsev Daniel Ehrenberg	_July 2020
Record & Tuple	Robin Ricard Richard Button	Robin Ricard Richard Button	_{September 2020}
JSON.parse source text access	Richard Gibson	Richard Gibson	_July 2020
Class Static Block	Ron Buckton	Ron Buckton	_{September 2020}
Resizable and growable ArrayBuffers	Shu-yu Guo	Shu-yu Guo	_{September 2020}
Error Cause	Chengzhong Wu	Chengzhong Wu Hemanth HM	_{November 2020}
Module Blocks	Surma Daniel Ehrenberg	Surma	_{January 2021}

✅ means a pull request for tests was merged.

❓ means there is no pull request for tests yet.

🚧 means a pull request for tests was created, but not merged yet.

Contributing new proposals

Please see Contributing to ECMAScript for the most up-to-date information on contributing proposals to this standard.

Onboarding existing proposals

Proposals that are Stage 1 and above must be transferred to the TC39 GitHub organization for discoverability and archival purposes. To onboard a proposal that lives outside the TC39 organization:

Transfer your repository to the @tc39-transfer organization

if you are a TC39 delegate, but not a member of that organization, please contact @LJHarb

One of the chairs (@bterlson, @gesa, @MylesBorins, or @robpalme) will transfer your repository to the TC39 organization the next chance they get.