main
Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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File size:
1.1 KB
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1 | 'use strict';
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2 |
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3 | var GetIntrinsic = require('get-intrinsic');
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4 |
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5 | var $TypeError = require('es-errors/type');
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6 |
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7 | var objectKeys = require('object-keys');
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8 |
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9 | var callBound = require('call-bind/callBound');
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10 |
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11 | var callBind = require('call-bind');
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12 |
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13 | var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
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14 | var $pushApply = callBind.apply(GetIntrinsic('%Array.prototype.push%'));
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15 |
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16 | var forEach = require('../helpers/forEach');
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17 |
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18 | var Type = require('./Type');
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19 |
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20 | // https://262.ecma-international.org/8.0/#sec-enumerableownproperties
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21 |
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22 | module.exports = function EnumerableOwnPropertyNames(O, kind) {
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23 | if (Type(O) !== 'Object') {
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24 | throw new $TypeError('Assertion failed: Type(O) is not Object');
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25 | }
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26 |
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27 | var keys = objectKeys(O);
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28 | if (kind === 'key') {
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29 | return keys;
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30 | }
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31 | if (kind === 'value' || kind === 'key+value') {
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32 | var results = [];
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33 | forEach(keys, function (key) {
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34 | if ($isEnumerable(O, key)) {
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35 | $pushApply(results, [
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36 | kind === 'value' ? O[key] : [key, O[key]]
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37 | ]);
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38 | }
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39 | });
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40 | return results;
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41 | }
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42 | throw new $TypeError('Assertion failed: "kind" is not "key", "value", or "key+value": ' + kind);
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43 | };
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