@diotoborg/laboriosam-eos
v4.6.115
Published
[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im
Downloads
1,969
Maintainers
Keywords
Readme
@diotoborg/laboriosam-eos
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('@diotoborg/laboriosam-eos');
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('@diotoborg/laboriosam-eos');
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('@diotoborg/laboriosam-eos');
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