15.2.3.7-6-a-177.js (872B)
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: 15.2.3.7-6-a-177 6 description: > 7 Object.defineProperties - 'O' is an Array, 'P' is the length 8 property of 'O', the [[Value]] field of 'desc' is less than value 9 of the length property, test the [[Writable]] attribute of the 10 length property is set to false at last when the [[Writable]] 11 field of 'desc' is false and 'O' doesn't contain non-configurable 12 large index named property (15.4.5.1 step 3.m) 13 includes: [propertyHelper.js] 14 ---*/ 15 16 17 var arr = [0, 1]; 18 19 Object.defineProperties(arr, { 20 length: { 21 value: 0, 22 writable: false 23 } 24 }); 25 26 assert(!arr.hasOwnProperty("1")); 27 assert(!arr.hasOwnProperty("0")); 28 29 verifyProperty(arr, "length", { 30 value: 0, 31 writable: false, 32 }); 33 34 reportCompare(0, 0);