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Ecma TC39

Ecma International, Technical Committee 39 - ECMAScript

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https://tc39.es
@TC39@fosstodon.org
company/tc39
@TC39

Overview
Repositories 307
Projects 2
Packages
People 155

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ecma262 Public

Status, process, and documents for ECMA-262

HTML 15.4k 1.3k
ecma402 Public

Status, process, and documents for ECMA 402

HTML 579 111
test262 Public

Official ECMAScript Conformance Test Suite

JavaScript 2.6k 495
proposals Public

Tracking ECMAScript Proposals

18.9k 736
agendas Public

TC39 meeting agendas

JavaScript 1.1k 199
notes Public

TC39 meeting notes

JavaScript 683 122

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Showing 10 of 307 repositories

dataset Public
The automatic track tc39 proposals

TypeScript 46 Unlicense 12 2 0 Updated Aug 13, 2025
proposal-temporal Public
Provides standard objects and functions for working with dates and times.

HTML 3,582 169 39 8 Updated Aug 12, 2025
test262 Public
Official ECMAScript Conformance Test Suite

JavaScript 2,569 495 205 (4 issues need help) 64 Updated Aug 12, 2025
proposal-type-annotations Public
ECMAScript proposal for type syntax that is erased - Stage 1

JavaScript 4,339 51 98 1 Updated Aug 12, 2025
proposal-signals Public
A proposal to add signals to JavaScript.

3,870 MIT 70 105 (5 issues need help) 7 Updated Aug 11, 2025
tc39.github.io Public
Get involved in specifying JavaScript

HTML 332 MIT 63 27 (3 issues need help) 1 Updated Aug 11, 2025
ecma402 Public
Status, process, and documents for ECMA 402

HTML 579 111 157 13 Updated Aug 9, 2025
ecma426 Public
Source map specification, RFCs and new proposals.

JavaScript 159 22 61 5 Updated Aug 7, 2025
proposal-deferred-reexports Public

33 MIT 3 0 0 Updated Aug 7, 2025
test262-harness Public
Experimental harness for test262

JavaScript 87 BSD-3-Clause 47 14 3 Updated Aug 7, 2025

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javascript proposal tc39 ecmascript tuple

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