Repositories list

• proposals

  Public
  Tracking ECMAScript Proposals

  languageproposalspec+ 5specificationlanguage-designcommitteejavascriptecmascript

  724•19k•6•4•Updated Apr 17, 2025Apr 17, 2025

• proposal-temporal

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

  HTML

  •

  Other

  •163•3.5k•37•7•Updated Apr 17, 2025Apr 17, 2025

• agendas

  Public
  TC39 meeting agendas

  JavaScript

  •188•1.1k•0•2•Updated Apr 17, 2025Apr 17, 2025

• proposal-compare-strings-by-codepoint

  Public
  A new method to compare strings by Unicode codepoint

  MIT License

  •0•6•7•0•Updated Apr 17, 2025Apr 17, 2025

• proposal-async-context-disposable

  Public
  MIT License

  •0•5•4•0•Updated Apr 17, 2025Apr 17, 2025

• dataset

  Public
  The automatic track tc39 proposals

  tc39

  TypeScript

  •

  The Unlicense

  •8•44•2•0•Updated Apr 17, 2025Apr 17, 2025

• proposal-deferred-reexports

  Public
  MIT License

  •1•14•0•0•Updated Apr 16, 2025Apr 16, 2025

• proposal-decimal

  Public
  Built-in exact decimal numbers for JavaScript

  javascriptarithmeticdecimal+ 2ieee754decimal128

  HTML

  •18•537•53•1•Updated Apr 16, 2025Apr 16, 2025

• ecma426

  Public
  Source map specification, RFCs and new proposals.

  JavaScript

  •

  Other

  •22•145•59•6•Updated Apr 16, 2025Apr 16, 2025

• notes

  Public
  TC39 meeting notes

  JavaScript

  •115•667•1•7•Updated Apr 16, 2025Apr 16, 2025

• test262

  Public
  Official ECMAScript Conformance Test Suite

  jsteststc39+ 1javascript

  JavaScript

  •

  Other

  •484•2.5k•200•45•Updated Apr 15, 2025Apr 15, 2025

• proposal-oom-fails-fast

  Public
  Proposal: Out of memory immediately terminates agent cluster

  JavaScript

  •

  Apache License 2.0

  •4•17•7•0•Updated Apr 15, 2025Apr 15, 2025

• proposal-record-tuple

  Public archive
  ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!

  recordtupletc39+ 2javascriptimmutable

  HTML

  •60•2.5k•25•0•Updated Apr 15, 2025Apr 15, 2025

• proposal-composites

  Public
  TypeScript

  •

  MIT License

  •1•104•13•0•Updated Apr 15, 2025Apr 15, 2025

• tc39.github.io

  Public
  Get involved in specifying JavaScript

  HTML

  •

  MIT License

  •59•324•26•1•Updated Apr 15, 2025Apr 15, 2025

• proposal-immutable-arraybuffer

  Public
  A TC39 proposal for immutable ArrayBuffers

  JavaScript

  •

  MIT License

  •1•28•5•0•Updated Apr 14, 2025Apr 14, 2025

• proposal-bigint-math

  Public
  Draft specification for supporting BigInts in JavaScript’s Math methods.

  proposalbiginttc39+ 1math

  HTML

  •

  BSD 3-Clause "New" or "Revised" License

  •2•37•2•0•Updated Apr 14, 2025Apr 14, 2025

• proposal-upsert

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

  MIT License

  •19•250•4•1•Updated Apr 14, 2025Apr 14, 2025

• proposal-async-context

  Public
  Async Context for JavaScript

  javascript

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •17•667•21•5•Updated Apr 11, 2025Apr 11, 2025

• proposal-import-sync

  Public
  MIT License

  •2•40•3•0•Updated Apr 10, 2025Apr 10, 2025

• proposal-enum

  Public
  Proposal for ECMAScript enums

  HTML

  •

  BSD 3-Clause "New" or "Revised" License

  •5•407•6•3•Updated Apr 10, 2025Apr 10, 2025

• ecma262

  Public
  Status, process, and documents for ECMA-262

  javascriptecmascript

  HTML

  •

  Other

  •1.3k•15k•332•117•Updated Apr 10, 2025Apr 10, 2025

• ecmarkup

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

  HTML

  •

  MIT License

  •66•229•93•8•Updated Apr 9, 2025Apr 9, 2025

• proposal-iterator-sequencing

  Public
  a TC39 proposal to create iterators by sequencing existing iterators

  JavaScript

  •2•69•3•0•Updated Apr 9, 2025Apr 9, 2025

• eshost

  Public
  A uniform wrapper around a multitude of ECMAScript hosts. CLI: https://github.com/bterlson/eshost-cli

  JavaScript

  •

  Other

  •41•142•17•19•Updated Apr 8, 2025Apr 8, 2025

• ecma402

  Public
  Status, process, and documents for ECMA 402

  HTML

  •

  Other

  •107•561•151•9•Updated Apr 8, 2025Apr 8, 2025

• how-we-work

  Public
  Documentation of how TC39 operates and how to participate

  27•207•20•9•Updated Apr 7, 2025Apr 7, 2025

• proposal-array-from-async

  Public
  Draft specification for a proposed Array.fromAsync method in JavaScript.

  HTML

  •

  BSD 3-Clause "New" or "Revised" License

  •14•190•3•1•Updated Apr 5, 2025Apr 5, 2025

• tg3

  Public
  TC39-TG3: Security

  2•13•0•1•Updated Apr 5, 2025Apr 5, 2025

• proposal-object-property-count

  Public
  TC39 proposal for Object.propertyCount(target[, options])

  MIT License

  •1•10•4•0•Updated Apr 3, 2025Apr 3, 2025