Never Perfectly Managed

    TypeScript icon, indicating that this package has built-in type declarations

    2.1.0 • Public • Published

    logo image


    A modern practical functional library

    test GitHub release deno land nest badge deno version node support version bundle size

    GitHub (Pre-)Release Date dependencies Status codecov Codacy Badge npm type definitions Commitizen friendly Gitmoji semantic-release code style: prettier License: MIT FOSSA Status


    • 💚 Friendly type definition
    • 🌎 Universal functions providing ESM and Commonjs
    • 📦 Optimized, super slim size
    • 📄 TSDoc-style comments
    • 🔢 Bigint support
    • 🦕 Deno support

    Fonction (French word for "function", not typo😅) is modern practical functional library. Special attention is paid to bundle size and strict type definitions. Therefore, you can take out and use only what you want to use without worrying about the size.

    📝 Docs

    Read the Docs to Learn More.

    💚 Supports

    The TypeScript version must be 4.1.0 or higher.

    This project provide ES modules and Commonjs.

    If you have an opinion about what to support, you can open an issue to discuss it.

    The browserslist has the following settings.

    > 0.5%
    last 1 version
    not IE <= 11
    not ie_mob <= 11
    node 14
    DenoDeno Node.jsNode.js IE / EdgeEdge FirefoxFirefox ChromeChrome SafariSafari iOS SafariiOS Safari SamsungSamsung OperaOpera
    ^1.6.0 ^14.16.0 ^88 ^86 ^87 ^13.1 ^13.4 ^13.0 ^73

    💫 Usage

    fonction provides multi platform modules.

    You can see all the functions here.

    🦕 Deno

    import { add } from ''
    add(1, 2) // 3

    import { add } from ''
    add(1, 2) // 3

    📦 Node.js


    npm i fonction
    yarn add fonction


    import { add } from 'fonction'
    add(1, 2) // 3


    const { add } = require('fonction')
    add(1, 2) // 3

    🌐 CDN

    The module that bundles the dependencies is obtained from skypack.

    <script type="module">
      import { add } from ''
      console.log(add(1, 2)) // 3

    🗺️ Loadmap

    For the time being, my goal is to implement the functions implemented in the great starting projects (lodash, ramda, rambda, ... etc).

    The release will be a public release when it is fully tested in the beta release and then merged into the main branch.

    You can check the implementation status of all functions here.

    You can also try all the features including the beta version with the following command or URL.

    npm i fonction@beta
    yarn add fonction@beta
    import { _ } from ''

    @VERSION format is like v1.5.0-beta.1.

    Other projects

    🤝 Contributing

    Contributions, issues and feature requests are welcome!
    Feel free to check issues.

    🌱 Show your support

    Give a ⭐️ if this project helped you!

    💡 License

    Copyright © 2021-present TomokiMiyauci.

    Released under the MIT license

    FOSSA Status


    npm i fonction

    DownloadsWeekly Downloads






    Unpacked Size

    189 kB

    Total Files


    Last publish


    • miyauci