15.2.3.10-3-22.js (551B)
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: 15.2.3.10-3-22 6 description: > 7 Object.preventExtensions - properties can still be deleted after 8 extensions have been prevented 9 ---*/ 10 11 var obj = { 12 prop: 12 13 }; 14 var preCheck = Object.isExtensible(obj); 15 Object.preventExtensions(obj); 16 17 delete obj.prop; 18 19 assert(preCheck, 'preCheck !== true'); 20 assert.sameValue(obj.hasOwnProperty("prop"), false, 'obj.hasOwnProperty("prop")'); 21 22 reportCompare(0, 0);