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 This list contains only stage 2 proposals and higher that have not yet been withdrawn/rejected, or become finished.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 |
January 2019 | |
| Class Public Instance Fields & Private Instance Fields | Daniel Ehrenberg Kevin Gibbons |
Daniel Ehrenberg Jeff Morrison Kevin Smith Kevin Gibbons |
March 2019 | |
| Static class fields and private static methods | Daniel Ehrenberg Kevin Gibbons Jeff Morrison Kevin Smith |
Shu-Yu Guo Daniel Ehrenberg |
January 2019 | |
| Hashbang Grammar | Bradley Farias | Bradley Farias | November 2018 | |
| Numeric separators | Sam Goto Rick Waldron |
Sam Goto Rick Waldron |
June 2019 | |
Top-level await |
Myles Borins | Myles Borins | June 2019 | |
| WeakRefs | Dean Tribble Sathya Gunasekaran |
Dean Tribble Mark Miller Till Schneidereit Sathya Gunasekaran Daniel Ehrenberg |
March 2020 | |
| RegExp Match Indices | Ron Buckton | Ron Buckton | December 2019 | |
String.prototype.replaceAll |
Peter Marshall Jakob Gruber Mathias Bynens |
Mathias Bynens | October 2019 | |
Promise.any |
Mathias Bynens Kevin Gibbons Sergey Rubanov |
Mathias Bynens | October 2019 | |
Atomics.waitAsync |
Lars Hansen | Shu-yu Guo Lars Hansen |
December 2019 | |
| Logical Assignment Operators | Justin Ridgewell | Justin Ridgewell Hemanth HM |
March 2020 |
Stage 2
| Proposal | Author | Champion | Last Presented |
|---|---|---|---|
function.sent metaproperty |
Allen Wirfs-Brock | 贺师俊 (HE Shi-Jun) | July 2019 |
| Decorators | Daniel Ehrenberg | Yehuda Katz Brian Terlson Daniel Ehrenberg |
March 2020 |
throw expressions |
Ron Buckton | Ron Buckton | January 2018 |
| Function implementation hiding | Domenic Denicola Michael Ficarra |
Michael Ficarra | December 2019 |
| New Set methods | Michał Wadas Sathya Gunasekaran |
Sathya Gunasekaran | January 2019 |
| Realms | Caridy Patiño Jean-Francois Paradis |
Dave Herman Mark Miller Caridy Patiño |
February 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 |
March 2020 |
| collection normalization | Bradley Farias | Bradley Farias | January 2019 |
| Array.isTemplateObject | Mike Samuel | Mike Samuel | December 2019 |
| Iterator helpers | Gus Caplan | Michael Ficarra Jonathan Keslin |
July 2019 |
| Explicit Resource Management | Ron Buckton | Ron Buckton | February 2020 |
Map.prototype.upsert |
Bradley Farias | Erica Pramer | October 2019 |
| Dynamic Import Host Adjustment | Mike Samuel | Mike Samuel | December 2019 |
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 an admin in that organization, please contact @LJHarb
- @bterlson, @gesa, or @codehag will transfer your repository to the TC39 organization the next chance they get.
Note that as part of the onboarding process your repository name may be normalized. Don't worry, repo redirects will continue to work as long as you never create a fork, or a new repository, with the same name - although Github Pages redirects will be broken (please update your links!).