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Ecma TC39

Ecma International, Technical Committee 39 - ECMAScript

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9.1k followers
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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 580 110
test262 Public

Official ECMAScript Conformance Test Suite

JavaScript 2.6k 497
proposals Public

Tracking ECMAScript Proposals

18.8k 737
agendas Public

TC39 meeting agendas

JavaScript 1.1k 199
notes Public

TC39 meeting notes

JavaScript 681 122

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Showing 10 of 307 repositories

proposal-import-bytes Public
A modest proposal for importing bytes in javascript

JavaScript 35 MIT 1 2 0 Updated Aug 1, 2025
dataset Public
The automatic track tc39 proposals

TypeScript 47 Unlicense 12 2 0 Updated Aug 1, 2025
proposal-object-property-count Public
TC39 proposal for Object.propertyCount(target[, options])

23 MIT 2 4 1 Updated Jul 31, 2025
test262 Public
Official ECMAScript Conformance Test Suite

JavaScript 2,566 497 204 (4 issues need help) 62 Updated Jul 31, 2025
proposal-intl-keep-trailing-zeros Public

3 MIT 1 3 0 Updated Jul 30, 2025
proposals Public
Tracking ECMAScript Proposals

18,844 737 6 4 Updated Jul 30, 2025
agendas Public
TC39 meeting agendas

JavaScript 1,144 199 0 4 Updated Jul 30, 2025
how-we-work Public
Documentation of how TC39 operates and how to participate

209 28 20 10 Updated Jul 30, 2025
test262-harness Public
Experimental harness for test262

JavaScript 87 BSD-3-Clause 47 14 2 Updated Jul 30, 2025
proposal-amount Public
Numbers with precision and a unit for JavaScript

HTML 27 MIT 3 29 1 Updated Jul 29, 2025

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javascript proposal tc39 ecmascript tuple

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