An ES2015 spec-compliant Array.prototype.values 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.values depends on a receiver (the âthisâ value), the main export takes the array to operate on as the first argument.
var values = require('array.prototype.values');
var assert = require('assert');
var iterate = require('iterate-iterator');
assert.deepStrictEqual(iterate(values([1, 2, 3])), [1, 2, 3]);
assert.deepStrictEqual(iterate(values([1, 0, 1])), [1, 0, 1]);
assert.deepStrictEqual(iterate(values([NaN])), [NaN]);
assert.deepStrictEqual(iterate(values([1,,3])), [1, undefined, 3]);
var values = require('array.prototype.values');
var assert = require('assert');
/* when Array#values is not present */
delete Array.prototype.values;
var shimmedMap = values.shim();
assert.deepStrictEqual(shimmedMap, values.getPolyfill());
assert.deepStrictEqual(iterate([1, 2, 3].values()), [1, 2, 3]);
assert.deepStrictEqual(iterate([1, 0, 1].values()), [1, 0, 1]);
assert.deepStrictEqual(iterate([NaN].values()), [NaN]);
assert.deepStrictEqual(iterate([1,,3].values()), [1, undefined, 3]);
var values = require('array.prototype.values');
var assert = require('assert');
/* when Array#values is present */
var shimmedMap = values.shim();
assert.equal(shimmedMap, Array.prototype.values);
assert.deepStrictEqual(iterate([1, 2, 3].values()), [1, 2, 3]);
Simply clone the repo, npm install, and run npm test
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