Finished proposals are proposals that have reached stage 4, and are included in the latest draft of the specification.
| Proposal | Author | Champion(s) | TC39 meeting notes | Expected Publication Year |
|---|---|---|---|---|
Array.prototype.includes |
Domenic Denicola | Domenic Denicola Rick Waldron |
November 2015 | 2016 |
| Exponentiation operator | Rick Waldron | Rick Waldron | January 2016 | 2016 |
Object.values/Object.entries |
Jordan Harband | Jordan Harband | March 2016 | 2017 |
| String padding | Jordan Harband | Jordan Harband Rick Waldron |
May 2016 | 2017 |
Object.getOwnPropertyDescriptors |
Jordan Harband Andrea Giammarchi |
Jordan Harband Andrea Giammarchi |
May 2016 | 2017 |
| Trailing commas in function parameter lists and calls | Jeff Morrison | Jeff Morrison | July 2016 | 2017 |
| Async functions | Brian Terlson | Brian Terlson | July 2016 | 2017 |
| Shared memory and atomics | Lars T Hansen | Lars T Hansen | January 2017 | 2017 |
| Lifting template literal restriction | Tim Disney | Tim Disney | March 2017 | 2018 |
s (dotAll) flag for regular expressions |
Mathias Bynens | Brian Terlson Mathias Bynens |
November 2017 | 2018 |
| RegExp named capture groups | Gorkem Yakin Daniel Ehrenberg |
Daniel Ehrenberg Brian Terlson Mathias Bynens |
November 2017 | 2018 |
| Rest/Spread Properties | Sebastian Markbåge | Sebastian Markbåge | January 2018 | 2018 |
| RegExp Lookbehind Assertions | Gorkem Yakin Nozomu Katō Daniel Ehrenberg |
Daniel Ehrenberg Mathias Bynens |
January 2018 | 2018 |
| RegExp Unicode Property Escapes | Mathias Bynens | Brian Terlson Daniel Ehrenberg Mathias Bynens |
January 2018 | 2018 |
Promise.prototype.finally |
Jordan Harband | Jordan Harband | January 2018 | 2018 |
| Asynchronous Iteration | Domenic Denicola | Domenic Denicola | January 2018 | 2018 |
Optional catch binding |
Michael Ficarra | Michael Ficarra | May 2018 | 2019 |
| JSON superset | Richard Gibson | Mark Miller Mathias Bynens |
May 2018 | 2019 |
See also the stage 0 proposals, active proposals, and inactive proposals documents.