flatmap-fast

    4.0.1 • Public • Published

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    flatmap-fast

    The fastest flatMap this side of node.

    Takes two arguments:

    1. An array.
    2. A callback function (optional).
    const flatMap = require("flatmap-fast");
    
    const testArr = ['Hi', 'World'];
    const splitWord = (word) => word.split('');
    
    flatMap(testArr, splitWord);
    
    // => ['H', 'i', 'W', 'o', 'r', 'l', 'd']
    
    flatMap([1, 2, 3, 4], (x) => [x, x * 2]);
    
    // => [1, 2, 2, 4, 3, 6, 4, 8]

    Run npm test to test this flatMap against other flatMaps.

    $ node --version
    v12.18.3
    $ yarn test
    yarn run v1.22.4
    $ node test.js
    // => flatMapFast took: 650.86651 milliseconds.
    [
      'H', 'i', 'W',
      'o', 'r', 'l',
      'd'
    ]
    // => flatmapjs took: 667.361729 milliseconds.
    [
      'H', 'i', 'W',
      'o', 'r', 'l',
      'd'
    ]
    // => flatMapFast took: 517.463478 milliseconds.
    [
      1, 2, 2, 4,
      3, 6, 4, 8
    ]
    // => flatmapjs took: 676.208413 milliseconds.
    [
      1, 2, 2, 4,
      3, 6, 4, 8
    ]
    Done in 2.74s.

    Install

    npm i flatmap-fast

    DownloadsWeekly Downloads

    10

    Version

    4.0.1

    License

    GPL-2.0+

    Unpacked Size

    21.5 kB

    Total Files

    10

    Last publish

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