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- 'use strict';
- var callBound = require('call-bind/callBound');
- var DefinePropertyOrThrow = require('./DefinePropertyOrThrow');
- var Get = require('./Get');
- var ToObject = require('./ToObject');
- var ToPropertyDescriptor = require('./ToPropertyDescriptor');
- var forEach = require('../helpers/forEach');
- var getOwnPropertyDescriptor = require('gopd');
- var OwnPropertyKeys = require('../helpers/OwnPropertyKeys');
- var $push = callBound('Array.prototype.push');
- // https://262.ecma-international.org/6.0/#sec-objectdefineproperties
- module.exports = function ObjectDefineProperties(O, Properties) {
- var props = ToObject(Properties); // step 1
- var keys = OwnPropertyKeys(props); // step 2
- var descriptors = []; // step 3
- forEach(keys, function (nextKey) { // step 4
- var propDesc = ToPropertyDescriptor(getOwnPropertyDescriptor(props, nextKey)); // step 4.a
- if (typeof propDesc !== 'undefined' && propDesc['[[Enumerable]]']) { // step 4.b
- var descObj = Get(props, nextKey); // step 4.b.i
- var desc = ToPropertyDescriptor(descObj); // step 4.b.ii
- $push(descriptors, [nextKey, desc]); // step 4.b.iii
- }
- });
- forEach(descriptors, function (pair) { // step 5
- var P = pair[0]; // step 5.a
- var desc = pair[1]; // step 5.b
- DefinePropertyOrThrow(O, P, desc); // step 5.c
- });
- return O; // step 6
- };
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