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tc39/proposal-relative-indexing-methodHTML

A TC39 proposal to add an .at() method to all the basic indexable classes (Array, String, TypedArray)

Last commit Jan 24, 2022

 (351 stars) (16 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-reverseIteratorHTML

Last commit Jul 23, 2019

 (10 stars) (2 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-seeded-randomHTML

Proposal for a new SeededPRNG class that yields reproducible sequences of random numbers.

Last commit Jun 3, 2025

 (196 stars) (6 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-shadowrealmHTML

ECMAScript Proposal, specs, and reference implementation for Realms

Last commit Nov 2, 2023

 (1,287 stars) (73 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-signals

A proposal to add signals to JavaScript.

Last commit Aug 11, 2025

 (4,125 stars) (71 forks) (4 indexed issues) (4 open good first issues)
tc39/proposal-slice-notationHTML

Last commit Jul 7, 2022

 (530 stars) (18 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-source-phase-importsHTML

Proposal to enable importing modules at the source phase

Last commit Mar 25, 2026

 (163 stars) (12 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-stabilizeJavaScript

Proposal for tc39 of new integrity "level" protecting against both override mistakes and proxy reentrancy

Last commit Mar 30, 2025

 (18 stars) (0 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-cookedHTML

ECMAScript proposal for String.cooked built-in template tag

Last commit Jul 1, 2022

 (59 stars) (3 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-dedentHTML

TC39 Proposal to remove common leading indentation from multiline template strings

Last commit Aug 21, 2023

 (663 stars) (14 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-matchall

ES Proposal, specs, tests, reference implementation, and polyfill/shim for String.prototype.matchAll

Last commit Dec 11, 2018

 (99 stars) (8 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-pad-start-endCSS

ECMAScript spec proposal for String.prototype.{padStart,padEnd}

Last commit May 25, 2016

 (75 stars) (8 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-prototype-codepointsHTML

String.prototype.codePoints proposal for ECMAScript (stage 1)

Last commit Oct 21, 2019

 (39 stars) (6 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-string-replaceallHTML

ECMAScript proposal: String.prototype.replaceAll

Last commit Feb 19, 2021

 (252 stars) (12 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-symbol-predicatesHTML

A proposal to introduce ways to differentiate symbols

Last commit May 15, 2023

 (26 stars) (3 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-symbol-thenableHTML

Last commit May 12, 2018

 (19 stars) (3 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-symbols-as-weakmap-keys

Permit Symbols as keys in WeakMaps, entries in WeakSets and WeakRefs, and registered in FinalizationRegistries

Last commit May 16, 2025

 (93 stars) (7 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-top-level-awaitHTML

top-level `await` proposal for ECMAScript (stage 4)

Last commit May 28, 2021

 (1,075 stars) (51 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-trailing-function-commasJavaScript

Last commit Jul 28, 2016

 (123 stars) (8 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-type-annotationsJavaScript

ECMAScript proposal for type syntax that is erased - Stage 1

Last commit May 11, 2023

 (3,405 stars) (41 forks) (0 indexed issues) (0 open good first issues)