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    array.prototype.filter

    1.0.0 • Public • Published

    array.prototype.filter Version Badge

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    An ES5 spec-compliant Array.prototype.filter shim/polyfill/replacement that works as far down as ES3.

    This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

    Because Array.prototype.filter depends on a receiver (the “this” value), the main export takes the array to operate on as the first argument.

    Example

    var filter = require('array.prototype.filter');
    var assert = require('assert');
    
    assert.deepEqual(filter([1, 2, 3], function (x) { return x >= 2; }), [2, 3]);
    assert.deepEqual(filter([1, 2, 3], function (x) { return x <= 2; }), [1, 2]);
    var filter = require('array.prototype.filter');
    var assert = require('assert');
    /* when Array#filter is not present */
    delete Array.prototype.filter;
    var shimmedFilter = filter.shim();
    assert.equal(shimmedFilter, filter.getPolyfill());
    var arr = [1, 2, 3];
    var isOdd = function (x) { return x % 2 !== 0; };
    assert.deepEqual(arr.filter(isOdd), filter(arr, isOdd));
    var filter = require('array.prototype.filter');
    var assert = require('assert');
    /* when Array#filter is present */
    var shimmedFilter = filter.shim();
    assert.equal(shimmedFilter, Array.prototype.filter);
    assert.deepEqual(arr.filter(isOdd), filter(arr, isOdd));

    Tests

    Simply clone the repo, npm install, and run npm test

    Install

    npm i array.prototype.filter

    DownloadsWeekly Downloads

    523,221

    Version

    1.0.0

    License

    MIT

    Unpacked Size

    18.9 kB

    Total Files

    16

    Last publish

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