15.2.3.6-4-188.js (670B)
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: 15.2.3.6-4-188 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is an array index 8 named property, test TypeError is thrown if the [[Writable]] 9 attribute of the length property in 'O' is false and value of 10 'name' equals to value of the length property (15.4.5.1 step 4.b) 11 ---*/ 12 13 var arrObj = [1, 2, 3]; 14 15 Object.defineProperty(arrObj, "length", { 16 writable: false 17 }); 18 assert.throws(TypeError, function() { 19 Object.defineProperty(arrObj, 3, { 20 value: "abc" 21 }); 22 }); 23 24 reportCompare(0, 0);