15.2.3.7-6-a-192.js (842B)
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-192 6 description: > 7 Object.defineProperties - 'O' is an Array, 'P' is an array index 8 named property, 'P' is own accessor property that overrides an 9 inherited data property (15.4.5.1 step 4.c) 10 ---*/ 11 12 var arr = []; 13 14 assert.throws(TypeError, function() { 15 Object.defineProperty(Array.prototype, "0", { 16 value: 11, 17 configurable: true 18 }); 19 20 Object.defineProperty(arr, "0", { 21 get: function() { 22 return 12; 23 }, 24 configurable: false 25 }); 26 27 Object.defineProperties(arr, { 28 "0": { 29 configurable: true 30 } 31 }); 32 }); 33 assert.sameValue(arr[0], 12, 'arr[0]'); 34 assert.sameValue(Array.prototype[0], 11, 'Array.prototype[0]'); 35 36 reportCompare(0, 0);