array.prototype.copywithin

    1.0.1 • Public • Published

    array.prototype.copywithin Version Badge

    github actions coverage dependency status dev dependency status License Downloads

    npm badge

    An ES2015 spec-compliant Array.prototype.copyWithin 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.copyWithin depends on a receiver (the “this” value), the main export takes the array to operate on as the first argument.

    Example

    var copyWithin = require('array.prototype.copywithin');
    var assert = require('assert');
    
    var arr = [1, 2, 3, 4, 5];
    assert.deepEqual(copyWithin(arr, 0, 3), [4, 5, 3, 4, 5]);
    assert.deepEqual(arr, [4, 5, 3, 4, 5]);
    var copyWithin = require('array.prototype.copywithin');
    var assert = require('assert');
    /* when Array#copyWithin is not present */
    delete Array.prototype.copyWithin;
    var shimmedCopyWithin = copyWithin.shim();
    assert.deepStrictEqual(shimmedCopyWithin, copyWithin.getPolyfill());
    
    var arr = [1, 2, 3, 4, 5];
    assert.deepEqual(copyWithin(arr, 0, 3), [4, 5, 3, 4, 5]);
    assert.deepEqual(arr, [4, 5, 3, 4, 5]);
    var copyWithin = require('array.prototype.copywithin');
    var assert = require('assert');
    /* when Array#copyWithin is present */
    var shimmedCopyWithin = copyWithin.shim();
    assert.equal(shimmedCopyWithin, Array.prototype.copyWithin);
    
    var arr = [1, 2, 3, 4, 5];
    assert.deepEqual(copyWithin(arr, 0, 3), [4, 5, 3, 4, 5]);
    assert.deepEqual(arr, [4, 5, 3, 4, 5]);

    Tests

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

    Install

    npm i array.prototype.copywithin

    DownloadsWeekly Downloads

    7

    Version

    1.0.1

    License

    MIT

    Unpacked Size

    23.8 kB

    Total Files

    18

    Last publish

    Collaborators

    • ljharb