Repositories list

• ecma426

  Public
  Source map specification, RFCs and new proposals.

  JavaScript

  •

  Other

  •19•142•58•7•Updated Mar 12, 2025Mar 12, 2025

• test262

  Public
  Official ECMAScript Conformance Test Suite

  jsteststc39+ 1javascript

  JavaScript

  •

  Other

  •482•2.5k•197•44•Updated Mar 12, 2025Mar 12, 2025

• dataset

  Public
  The automatic track tc39 proposals

  tc39

  TypeScript

  •

  The Unlicense

  •8•43•2•0•Updated Mar 12, 2025Mar 12, 2025

• notes

  Public
  TC39 meeting notes

  JavaScript

  •113•658•1•7•Updated Mar 10, 2025Mar 10, 2025

• proposal-async-context

  Public
  Async Context for JavaScript

  javascript

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •16•637•22•5•Updated Mar 10, 2025Mar 10, 2025

• ecma402

  Public
  Status, process, and documents for ECMA 402

  HTML

  •

  Other

  •106•555•152•10•Updated Mar 10, 2025Mar 10, 2025

• source-map-tests

  Public
  JavaScript

  •

  Other

  •7•8•7•0•Updated Mar 8, 2025Mar 8, 2025

• proposal-discard-binding

  Public
  Proposal to introduce discard bindings to ECMAScript

  JavaScript

  •

  MIT License

  •2•50•6•2•Updated Mar 7, 2025Mar 7, 2025

• ecma262

  Public
  Status, process, and documents for ECMA-262

  javascriptecmascript

  HTML

  •

  Other

  •1.3k•15k•331•119•Updated Mar 6, 2025Mar 6, 2025

• proposal-defer-import-eval

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

  HTML

  •

  MIT License

  •13•250•4•2•Updated Mar 6, 2025Mar 6, 2025

• proposal-upsert

  Public
  ECMAScript Proposal, specs, and reference implementation for Map.prototype.upsert

  MIT License

  •16•227•3•0•Updated Mar 6, 2025Mar 6, 2025

• proposal-iterator-chunking

  Public
  a proposal to add a method to iterators for producing an iterator of its subsequences

  JavaScript

  •1•45•0•0•Updated Mar 6, 2025Mar 6, 2025

• proposals

  Public
  Tracking ECMAScript Proposals

  languageproposalspec+ 5specificationlanguage-designcommitteejavascriptecmascript

  723•19k•6•5•Updated Mar 6, 2025Mar 6, 2025

• proposal-immutable-arraybuffer

  Public
  A TC39 proposal for immutable ArrayBuffers

  JavaScript

  •

  MIT License

  •1•26•5•0•Updated Mar 6, 2025Mar 6, 2025

• proposal-seeded-random

  Public
  Proposal for an options argument to be added to JS's Math.random() function, and some options to start it with.

  HTML

  •

  MIT License

  •6•159•7•0•Updated Mar 5, 2025Mar 5, 2025

• tc39.github.io

  Public
  Get involved in specifying JavaScript

  HTML

  •

  MIT License

  •60•322•26•1•Updated Mar 5, 2025Mar 5, 2025

• proposal-intl-locale-info

  Public
  An API to expose information of locale, such as week data ( first day of a week, weekend start, weekend end), hour cycle, measurement system, commonly used calendar, etc.

  HTML

  •

  MIT License

  •13•60•4•2•Updated Mar 4, 2025Mar 4, 2025

• ecmarkup

  Public
  An HTML superset/Markdown subset source format for ECMAScript and related specifications

  HTML

  •

  MIT License

  •66•226•93•11•Updated Mar 3, 2025Mar 3, 2025

• agendas

  Public
  TC39 meeting agendas

  JavaScript

  •188•1.1k•0•0•Updated Mar 3, 2025Mar 3, 2025

• proposal-temporal

  Public
  Provides standard objects and functions for working with dates and times.

  HTML

  •

  Other

  •163•3.5k•36•6•Updated Mar 1, 2025Mar 1, 2025

• tg3

  Public
  TC39-TG3: Security

  2•13•0•1•Updated Feb 26, 2025Feb 26, 2025

• proposal-intl-duration-format

  Public
  MIT License

  •18•184•7•0•Updated Feb 26, 2025Feb 26, 2025

• how-we-work

  Public
  Documentation of how TC39 operates and how to participate

  27•206•20•8•Updated Feb 25, 2025Feb 25, 2025

• proposal-limited-arraybuffer

  Public
  HTML

  •

  MIT License

  •5•11•2•1•Updated Feb 22, 2025Feb 22, 2025

• tg5

  Public
  TC39-TG5: Experiments in programming language standardization. https://ecma-international.org/task-groups/tc39-tg5/

  2•20•28•0•Updated Feb 22, 2025Feb 22, 2025

• proposal-error-capturestacktrace

  Public
  Standardizing Error.captureStackTrace

  MIT License

  •0•4•2•0•Updated Feb 21, 2025Feb 21, 2025

• proposal-stabilize

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

  JavaScript

  •

  Apache License 2.0

  •0•15•4•0•Updated Feb 20, 2025Feb 20, 2025

• proposal-math-clamp

  Public
  A TC39 proposal to add Math.clamp

  MIT License

  •1•63•9•0•Updated Feb 20, 2025Feb 20, 2025

• proposal-error-stack-accessor

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

  MIT License

  •1•13•6•0•Updated Feb 19, 2025Feb 19, 2025

• proposal-stable-formatting

  Public
  A TC-39 proposal to bring stable Intl-inspired formatting options to ECMAScript

  2•13•4•0•Updated Feb 19, 2025Feb 19, 2025