1// Copyright JS Foundation and other contributors, http://js.foundation 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15var emptyObject = {} 16 17var propertyDescriptor = { 18 enumerable: true, 19 configurable: true, 20 get: function () { 21 return myProperty; 22 }, 23 set: function (newValue) { 24 myProperty = newValue; 25 } 26} 27 28Object.defineProperty(emptyObject, 'myProperty', propertyDescriptor); 29 30var checkGetSet = false; 31var isEnumerable = false; 32var isConfigurable = false; 33 34emptyObject.myProperty = "foobar"; 35if (emptyObject.myProperty == "foobar") 36 checkGetSet = true; 37 38for (p in emptyObject) { 39 if (emptyObject[p] == "foobar") { 40 isEnumerable = true; 41 break; 42 } 43} 44 45if (delete emptyObject.myProperty) 46 isConfigurable = true; 47 48assert(checkGetSet && isEnumerable && isConfigurable); 49 50