@thi.ng/random
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    3.3.2 • Public • Published

    random

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    This project is part of the @thi.ng/umbrella monorepo.

    About

    Pseudo-random number generators w/ unified API, distributions, weighted choices, ID generation.

    This package provides the IRandom interface and various (mostly seedable) pseudo-random number generator implementations, incl. IRandom wrappers for Math.random() and window.crypto:

    Partially ported from C implementations taken from c.thi.ng.

    Random distributions

    Other utilities

    Status

    STABLE - used in production

    Search or submit any issues for this package

    Support packages

    Related packages

    • @thi.ng/ksuid - Configurable K-sortable unique IDs, ULIDs, binary & base-N encoded, 32/48/64bit time resolutions

    Installation

    yarn add @thi.ng/random

    ES module import:

    <script type="module" src="https://cdn.skypack.dev/@thi.ng/random"></script>

    Skypack documentation

    For Node.js REPL:

    # with flag only for < v16
    node --experimental-repl-await
    
    > const random = await import("@thi.ng/random");
    

    Package sizes (gzipped, pre-treeshake): ESM: 1.99 KB

    Dependencies

    Usage examples

    Several demos in this repo's /examples directory are using this package.

    A selection:

    Screenshot Description Live demo Source
    Probabilistic color theme generator Demo Source
    Interactive inverse FFT toy synth Demo Source
    2D Bezier curve-guided particle system Demo Source
    Interactive pixel sorting tool using thi.ng/color & thi.ng/pixel Demo Source
    Evolutionary shader generation using genetic programming Demo Source

    API

    Generated API docs

    import { Smush32 } from "@thi.ng/random";
    
    const rnd = new Smush32(0xdecafbad);
    
    // the following methods are available for all generators
    
    // next uint (0 .. 2^32-1)
    rnd.int()
    // 4022849029
    
    // next float [0.0 .. 1.0)
    rnd.float()
    // 0.2698542904737066
    
    // next normalized float (w/ opt scale)
    // [-scale .. +scale)
    rnd.norm(100)
    // 57.70723665079737
    
    // next float in given interval [min .. max)
    rnd.minmax(10, 20)
    // 15.295951807707537
    
    rnd.minmaxInt(10, 20)

    Authors

    Karsten Schmidt

    If this project contributes to an academic publication, please cite it as:

    @misc{thing-random,
      title = "@thi.ng/random",
      author = "Karsten Schmidt",
      note = "https://thi.ng/random",
      year = 2015
    }

    License

    © 2015 - 2022 Karsten Schmidt // Apache Software License 2.0

    Install

    npm i @thi.ng/random

    DownloadsWeekly Downloads

    50,461

    Version

    3.3.2

    License

    Apache-2.0

    Unpacked Size

    68 kB

    Total Files

    52

    Last publish

    Collaborators

    • thi.ng