15.2.3.6-4-162.js (655B)
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: 15.2.3.6-4-162 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is the length 8 property of 'O', the [[Value]] field of 'desc' is greater than 9 value of the length property, test TypeError is thrown when the 10 length property is not writable (15.4.5.1 step 3.f.i) 11 ---*/ 12 13 var arrObj = []; 14 15 Object.defineProperty(arrObj, "length", { 16 writable: false 17 }); 18 assert.throws(TypeError, function() { 19 Object.defineProperty(arrObj, "length", { 20 value: 12 21 }); 22 }); 23 24 reportCompare(0, 0);