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Direktori : /var/www/html/node_modules/es-abstract/2021/ |
Current File : //var/www/html/node_modules/es-abstract/2021/CopyDataProperties.js |
'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var callBound = require('call-bind/callBound'); var forEach = require('../helpers/forEach'); var every = require('../helpers/every'); var some = require('../helpers/some'); var OwnPropertyKeys = require('../helpers/OwnPropertyKeys'); var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable'); var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow'); var Get = require('./Get'); var IsArray = require('./IsArray'); var IsIntegralNumber = require('./IsIntegralNumber'); var IsPropertyKey = require('./IsPropertyKey'); var SameValue = require('./SameValue'); var ToNumber = require('./ToNumber'); var ToObject = require('./ToObject'); var Type = require('./Type'); // https://www.ecma-international.org/ecma-262/12.0/#sec-copydataproperties module.exports = function CopyDataProperties(target, source, excludedItems) { if (Type(target) !== 'Object') { throw new $TypeError('Assertion failed: "target" must be an Object'); } if (!IsArray(excludedItems) || !every(excludedItems, IsPropertyKey)) { throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys'); } if (typeof source === 'undefined' || source === null) { return target; } var from = ToObject(source); var keys = OwnPropertyKeys(from); forEach(keys, function (nextKey) { var excluded = some(excludedItems, function (e) { return SameValue(e, nextKey) === true; }); /* var excluded = false; forEach(excludedItems, function (e) { if (SameValue(e, nextKey) === true) { excluded = true; } }); */ var enumerable = $isEnumerable(from, nextKey) || ( // this is to handle string keys being non-enumerable in older engines typeof source === 'string' && nextKey >= 0 && IsIntegralNumber(ToNumber(nextKey)) ); if (excluded === false && enumerable) { var propValue = Get(from, nextKey); CreateDataPropertyOrThrow(target, nextKey, propValue); } }); return target; };