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A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.
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mathiasbynens/Array.from
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A spec-compliantArray.from shim/polyfill/replacement that works as far down as ES3.
This package implements thees-shim API interface. It works in an ES3-supported environment and complies with the proposedspec.
TheArray.from() method creates a new Array instance from an array-like or iterable object.
npm install array.from
varfrom=require('array.from');varassert=require('assert');assert.deepEqual(from('abc'),['a','b','c']);
varfrom=require('array.from');varassert=require('assert');/* when Array#from is not present */deleteArray.from;varshimmedFrom=from.shim();assert.equal(shimmedFrom,from.getPolyfill());assert.deepEqual(Array.from('foo'),from('foo'));
varfrom=require('array.from');varassert=require('assert');/* when Array#from is present */varshimmedFrom=from.shim();assert.equal(shimmedFrom,Array.from);assert.deepEqual(Array.from('abc'),from('abc'));
Simply clone the repo,npm install, and runnpm test
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| Mathias Bynens |
This polyfill is available under theMIT license.
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A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.
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