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tc39 repositories

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tc39/proposal-bigintHTML

Arbitrary precision integers in JavaScript

Last commit Oct 9, 2019

 (558 stars) (62 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-built-in-modulesHTML

Last commit Jun 2, 2023

 (881 stars) (29 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-cancelable-promisesShell

Former home of the now-withdrawn cancelable promises proposal for JavaScript

Last commit Dec 15, 2016

 (375 stars) (29 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-class-brand-checkHTML

JavaScript proposal to provide class brand checks

Last commit Jan 25, 2022

 (19 stars) (2 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-class-fieldsHTML

Orthogonally-informed combination of public and private fields proposals

Last commit Jan 24, 2022

 (1,719 stars) (129 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-class-public-fieldsHTML

Stage 2 proposal for public class fields in ECMAScript

Last commit Jan 24, 2022

 (490 stars) (24 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-compartmentsHTML

Compartmentalization of host behavior hooks for JS

Last commit Dec 19, 2022

 (133 stars) (10 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-concurrency-controlTypeScript

interfaces and data structures for concurrency control and integration into async iterator helpers

Last commit Nov 26, 2025

 (47 stars) (1 fork) (0 indexed issues) (0 open good first issues)
tc39/proposal-dataview-get-set-uint8clamped

TC39 proposal to add DataView.prototype.getUint8Clamped and DataView.prototype.setUint8Clamped

Last commit Oct 10, 2024

 (10 stars) (0 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-decorators

Decorators for ES6 classes

Last commit Sep 5, 2024

 (2,957 stars) (116 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-defer-import-evalHTML

A proposal for introducing a way to defer evaluate of a module

Last commit Apr 21, 2026

 (313 stars) (21 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-deiterHTML

Double-Ended Iterator and Destructuring

Last commit Jul 21, 2022

 (70 stars) (2 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-dynamic-importHTML

import() proposal for JavaScript

Last commit Jan 24, 2022

 (1,857 stars) (66 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-ecmascript-sharedmemHTML

Shared memory and atomics for ECMAscript

Last commit Jan 24, 2022

 (375 stars) (31 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-emitter

Last commit Jun 11, 2019

 (92 stars) (4 forks) (1 indexed issue) (1 open good first issue)
tc39/proposal-error-causeHTML

TC39 proposal for accumulating errors

Last commit Oct 26, 2021

 (376 stars) (8 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-error-stack-accessor

ECMAScript Proposal, specs, and reference implementation for Error.prototype.stack accessor

Last commit May 21, 2026

 (28 stars) (2 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-error-stacksHTML

ECMAScript Proposal, specs, and reference implementation for Error.prototype.stack / System.getStack

Last commit Jan 5, 2026

 (191 stars) (12 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-esm-phase-importsHTML

Last commit May 21, 2026

 (53 stars) (3 forks) (0 indexed issues) (0 open good first issues)
tc39/proposal-exponentiation-operatorHTML

Progress tracking for ES7 exponentiation operator

Last commit Jan 24, 2022

 (93 stars) (17 forks) (0 indexed issues) (0 open good first issues)