ECMAScript

Current Proposals

Proposals follow this process document.

|🚀| Proposal | Champion | Stage |---|------------------------------------------------------------------------------------ |-------------- | ------|------ | | Object.values/Object.entries | Jordan Harband | 4 | | SIMD.JS - SIMD APIs + polyfill| John McCutchan, Peter Jensen, Dan Gohman, Daniel Ehrenberg |3 | | | Async Functions |Brian Terlson |3 | | | String padding | Jordan Harband & Rick Waldron | 3 | | Trailing commas in function parameter lists and calls | Jeff Morrison | 3 | | Object.getOwnPropertyDescriptors | Jordan Harband & Andrea Giammarchi | 3 | | Function.prototype.toString revision | Michael Ficarra | 3 | | Asynchronous Iterators | Kevin Smith | 2 | | function.sent metaproperty | Allen Wirfs-Brock |2 | | | Rest/Spread Properties | Sebastian Markbage | 2 | | Shared memory and atomics | Lars T Hansen | 2 | | System.global | Jordan Harband | 2 | | ArrayBuffer.transfer | Luke Wagneer & Allen Wirfs-Brock | 1 |🚀| export * as ns from "mod"; statements| Lee Byron | 1 |🚀| export v from "mod"; statements| Lee Byron | 1 |🚀|Class and Property Decorators | Yehuda Katz and Jonathan Turner | 1 | | | Observable | Kevin Smith & Jafar Husain | 1 | | String.prototype.{trimLeft,trimRight} | Sebastian Markbage | 1 | | Class Property Declarations| Jeff Morrison| 1 | | String#matchAll | Jordan Harband | 1 | | Private Fields | Kevin Smith | 1 | | WeakRefs | Dean Tribble | 1 | | Frozen Realms | Mark S. Miller, Chip Morningstar, Caridy Patiño | 1

🚀 means the champion thinks it's ready to advance but has not yet presented to the committee.

See also the stage 0 proposals.

Contributing New Proposals

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

Developing the Specification

After cloning, do npm install to set up your environment. You can then do npm run build to build the spec or npm run watch to set up a continuous build. The results will appear in the out directory, which you can use npm run clean to delete.