15.2.3.5-4-182.js (859B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.5-4-182 6 description: > 7 Object.create - 'writable' property of one property in 8 'Properties' is own data property that overrides an inherited data 9 property (8.10.5 step 6.a) 10 ---*/ 11 12 var proto = { 13 writable: false 14 }; 15 16 var ConstructFun = function() {}; 17 ConstructFun.prototype = proto; 18 19 var descObj = new ConstructFun(); 20 21 descObj.writable = true; 22 23 var newObj = Object.create({}, { 24 prop: descObj 25 }); 26 27 var beforeWrite = (newObj.hasOwnProperty("prop") && typeof(newObj.prop) === "undefined"); 28 29 newObj.prop = "isWritable"; 30 31 var afterWrite = (newObj.prop === "isWritable"); 32 33 assert.sameValue(beforeWrite, true, 'beforeWrite'); 34 assert.sameValue(afterWrite, true, 'afterWrite'); 35 36 reportCompare(0, 0);