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@tc39 Ecma TC39

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    324 repositories

    • dataset

      Public
      The automatic track tc39 proposals
      tc39
      tc39
      TypeScript
      •
      The Unlicense
      •11•47•2•0•Updated Mar 22, 2026Mar 22, 2026

    • test262

      Public
      Official ECMAScript Conformance Test Suite
      javascriptjstests
      javascriptjsteststc39
      JavaScript
      •
      Other
      •534•2.7k•213•93•Updated Mar 21, 2026Mar 21, 2026

    • notes

      Public
      TC39 meeting notes
      JavaScript
      •125•705•1•6•Updated Mar 20, 2026Mar 20, 2026

    • how-we-work

      Public
      Documentation of how TC39 operates and how to participate
      29•215•23•8•Updated Mar 20, 2026Mar 20, 2026

    • proposals

      Public
      Tracking ECMAScript Proposals
      javascriptlanguageproposal
      javascriptlanguageproposalecmascriptspecspecificationlanguage-designcommittee
      745•19k•3•3•Updated Mar 20, 2026Mar 20, 2026

    • proposal-deferred-reexports

      Public
      MIT License
      •5•51•7•2•Updated Mar 20, 2026Mar 20, 2026

    • ecma262

      Public
      Status, process, and documents for ECMA-262
      javascriptecmascript
      javascriptecmascript
      HTML
      •
      Other
      •1.4k•16k•356•118•Updated Mar 20, 2026Mar 20, 2026

    • proposal-defer-import-eval

      Public
      A proposal for introducing a way to defer evaluate of a module
      HTML
      •
      MIT License
      •21•305•6•1•Updated Mar 20, 2026Mar 20, 2026

    • tc39.github.io

      Public
      Get involved in specifying JavaScript
      HTML
      •
      MIT License
      •61•331•28•2•Updated Mar 20, 2026Mar 20, 2026

    • proposal-intl-era-monthcode

      Public
      To specify necessary details about era, eraYear and monthCode usage with Temporal for non-ISO calendars.
      HTML
      •
      MIT License
      •10•8•4•1•Updated Mar 19, 2026Mar 19, 2026

    • test262-harness

      Public
      Experimental harness for test262
      JavaScript
      •
      BSD 3-Clause "New" or "Revised" License
      •48•94•14•9•Updated Mar 18, 2026Mar 18, 2026

    • proposal-immutable-arraybuffer

      Public
      A TC39 proposal for immutable ArrayBuffers
      JavaScript
      •
      MIT License
      •5•35•8•1•Updated Mar 18, 2026Mar 18, 2026

    • tg5

      Public
      TC39-TG5: Experiments in programming language standardization. https://ecma-international.org/task-groups/tc39-tg5/
      3•26•28•0•Updated Mar 18, 2026Mar 18, 2026

    • proposal-temporal

      Public
      Provides standard objects and functions for working with dates and times.
      HTML
      •
      Other
      •174•3.7k•16•5•Updated Mar 17, 2026Mar 17, 2026

    • proposal-async-context

      Public
      Async Context for JavaScript
      javascript
      javascript
      HTML
      •
      Creative Commons Zero v1.0 Universal
      •26•830•22•7•Updated Mar 17, 2026Mar 17, 2026

    • ecma426

      Public
      Source map specification, RFCs and new proposals.
      JavaScript
      •
      Other
      •25•184•63•10•Updated Mar 17, 2026Mar 17, 2026

    • proposal-await-dictionary

      Public
      A proposal to add Promise.allKeyed to ECMAScript
      JavaScript
      •
      MIT License
      •8•127•6•1•Updated Mar 15, 2026Mar 15, 2026

    • proposal-thenable-curtailment

      Public
      A proposal to curtail the power of "thenable" objects.
      MIT License
      •0•13•8•0•Updated Mar 13, 2026Mar 13, 2026

    • proposal-typedarray-concat

      Public
      A proposal for optimizable TypedArray concatenation
      JavaScript
      •
      MIT License
      •0•5•5•1•Updated Mar 12, 2026Mar 12, 2026

    • proposal-iterator-includes

      Public
      Array.prototype.includes but for iterators
      JavaScript
      •1•8•1•0•Updated Mar 12, 2026Mar 12, 2026

    • proposal-enum

      Public
      Proposal for ECMAScript enums
      HTML
      •
      BSD 3-Clause "New" or "Revised" License
      •9•482•11•3•Updated Mar 12, 2026Mar 12, 2026

    • proposal-import-text

      Public
      A TC39 proposal for importing text
      0•33•1•0•Updated Mar 12, 2026Mar 12, 2026

    • proposal-first-class-protocols

      Public
      a proposal to bring protocol-based interfaces to ECMAScript users
      HTML
      •
      MIT License
      •9•389•24•0•Updated Mar 11, 2026Mar 11, 2026

    • agendas

      Public
      TC39 meeting agendas
      JavaScript
      •201•1.2k•0•2•Updated Mar 11, 2026Mar 11, 2026

    • proposal-typedarray-findwithin

      Public
      A proposal for searching for a subsequence within a TypedArray
      JavaScript
      •
      MIT License
      •0•10•7•1•Updated Mar 11, 2026Mar 11, 2026

    • proposal-regexp-buffer-boundaries

      Public
      Regular Expression Buffer Boundaries for ECMAScript
      HTML
      •
      BSD 3-Clause "New" or "Revised" License
      •2•10•3•0•Updated Mar 10, 2026Mar 10, 2026

    • proposal-cancellation

      Public
      Proposal for a Cancellation API for ECMAScript
      javascriptproposalecmascript
      javascriptproposalecmascriptcancellation
      HTML
      •
      BSD 3-Clause "New" or "Revised" License
      •7•273•11•0•Updated Mar 10, 2026Mar 10, 2026

    • proposal-esm-phase-imports

      Public
      HTML
      •
      MIT License
      •2•53•4•5•Updated Mar 10, 2026Mar 10, 2026

    • proposal-error-stack-accessor

      Public
      ECMAScript Proposal, specs, and reference implementation for Error.prototype.stack accessor
      MIT License
      •2•21•3•0•Updated Mar 10, 2026Mar 10, 2026

    • proposal-intl-unit-protocol

      Public
      TC39 proposal for adding units to format functions
      JavaScript
      •
      MIT License
      •0•7•1•0•Updated Mar 10, 2026Mar 10, 2026