15.2.3.6-4-171.js (961B)
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: 15.2.3.6-4-171 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is the length 8 property of 'O', the [[Value]] field of 'desc' is less than value 9 of the length property, test the [[Configurable]] attribute of an 10 inherited data property with large index named in 'O' can't stop 11 deleting index named properties (15.4.5.1 step 3.l.ii) 12 ---*/ 13 14 var arrObj = [0, 1]; 15 16 Array.prototype[1] = 2; // Not setting the [[Configurable]] attribute of property "1" to false here, since Array.prototype is a global object, and non-configurbale property can't revert to configurable 17 Object.defineProperty(arrObj, "length", { 18 value: 1 19 }); 20 21 assert.sameValue(arrObj.length, 1, 'arrObj.length'); 22 assert.sameValue(arrObj.hasOwnProperty("1"), false, 'arrObj.hasOwnProperty("1")'); 23 24 reportCompare(0, 0);