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 This list contains only stage 2 proposals and higher that have not yet been withdrawn/rejected, or become finished.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 | |
Top-level await |
Myles Borins | Myles Borins | June 2019 | |
RegExp Match Indices | Ron Buckton | Ron Buckton | December 2019 | |
Atomics.waitAsync |
Lars Hansen | Shu-yu Guo Lars Hansen |
December 2019 | |
.item() |
Shu-yu Guo Tab Atkins |
Shu-yu Guo Tab Atkins |
September 2020 | |
Import Assertions | Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg |
Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg |
September 2020 |
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 |
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 |
Ergonomic brand checks for Private Fields | Jordan Harband | Jordan Harband | September 2020 |
WeakRefs cleanupSome |
Yulia Startsev Daniel Ehrenberg |
Yulia Startsev Daniel Ehrenberg |
July 2020 |
JSON Modules | Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg |
Myles Borins Sven Sauleau Dan Clark Daniel Ehrenberg |
September 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 |
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.
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!).