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    • at

      Public
      Array and String at(index) polyfill.
      JavaScript
      MIT License
      0000Updated Feb 10, 2026Feb 10, 2026
    • marker

      Public
      A marker for the Web
      JavaScript
      MIT License
      0000Updated Jan 30, 2026Jan 30, 2026
    • raw-json

      Public
      JSON.rawJSON and isRawJSON ponyfill
      JavaScript
      MIT License
      12700Updated Jul 21, 2025Jul 21, 2025
    • A De/CompressionStream for Bun
      JavaScript
      01300Updated Jul 9, 2025Jul 9, 2025
    • A structuredClone polyfill
      JavaScript
      ISC License
      1832210Updated Jan 23, 2025Jan 23, 2025
    • Moves a node before another one or append it.
      JavaScript
      MIT License
      0800Updated Nov 22, 2024Nov 22, 2024
    • The ungap landing page.
      HTML
      01610Updated Oct 30, 2024Oct 30, 2024
    • bytes

      Public
      Polyfill for Blob, Response, Request and File bytes method.
      JavaScript
      MIT License
      0700Updated Oct 7, 2024Oct 7, 2024
    • esx

      Public
      A template literal based ESX proposal
      JavaScript
      ISC License
      05200Updated Jul 31, 2024Jul 31, 2024
    • new

      Public
      An extension to allow `Class.new(...args)` instead of `new Class(...args)`
      JavaScript
      01200Updated Aug 8, 2023Aug 8, 2023
    • custom-elements

      Public
      All inclusive customElements polyfill for every browser
      JavaScript
      ISC License
      1226430Updated Jun 21, 2023Jun 21, 2023
    • Promise.witResolvers() polyfill.
      JavaScript
      03200Updated Jun 19, 2023Jun 19, 2023
    • An EventTarget polyfill
      JavaScript
      ISC License
      124010Updated Apr 10, 2023Apr 10, 2023
    • An ESX transformer as implementation reference.
      JavaScript
      MIT License
      1700Updated Mar 2, 2023Mar 2, 2023
    • New Set methods polyfill
      JavaScript
      ISC License
      0400Updated Feb 11, 2023Feb 11, 2023
    • esxtoken

      Public
      The ESXToken class
      JavaScript
      0700Updated Dec 13, 2022Dec 13, 2022
    • A JSX transformer with extra hints around interpolations and outer templates.
      JavaScript
      11410Updated Nov 24, 2022Nov 24, 2022
    • WIP
      JavaScript
      0500Updated Oct 5, 2022Oct 5, 2022
    • once

      Public
      Function.prototype.once polyfill
      JavaScript
      11700Updated Apr 6, 2022Apr 6, 2022
    • event

      Public
      An Event polyfill for legacy browsers.
      JavaScript
      2411Updated Dec 17, 2021Dec 17, 2021
    • degap

      Public
      The ideal rollup-plugin-includepaths @ungap companion.
      JavaScript
      0310Updated Jul 11, 2021Jul 11, 2021
    • A crypto.randomUUID polyfill.
      JavaScript
      42400Updated Jul 3, 2021Jul 3, 2021
    • remove

      Public
      An Element.prototype.remove polyfill.
      JavaScript
      ISC License
      0100Updated Jun 28, 2021Jun 28, 2021
    • A Node.prototype.insertAfter polyfill
      JavaScript
      ISC License
      0000Updated Jun 16, 2021Jun 16, 2021
    • An `Element.prototype.isConnected` polyfill.
      JavaScript
      ISC License
      0400Updated Jun 16, 2021Jun 16, 2021
    • has-own

      Public
      An Object.hasOwn polyfill.
      JavaScript
      0200Updated May 19, 2021May 19, 2021
    • A polyfill for Custom Elements builtin extends
      JavaScript
      ISC License
      1010300Updated May 6, 2021May 6, 2021
    • queueMicrotask for all envs
      JavaScript
      2900Updated Feb 23, 2021Feb 23, 2021
    • A cross engine globalThis
      JavaScript
      ISC License
      1513400Updated Jan 20, 2021Jan 20, 2021
    • A cross browser utility to create HTML or SVG runtime content
      JavaScript
      11610Updated Jan 14, 2021Jan 14, 2021
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