/// Copyright (c) 2012 Ecma International. All rights reserved. | |
/// Ecma International makes this code available under the terms and conditions set | |
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the | |
/// "Use Terms"). Any redistribution of this code must retain the above | |
/// copyright and this notice and otherwise comply with the Use Terms. | |
/** | |
* Refer 11.1.4; | |
* The production | |
* ElementList : ElementList , Elisionopt AssignmentExpression | |
* 6.Call the [[DefineOwnProperty]] internal method of array with arguments ToString(ToUint32((pad+len)) and the Property Descriptor { [[Value]]: initValue | |
* , [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true}, and false. | |
* | |
* @path ch11/11.1/11.1.4/11.1.4_5-6-1.js | |
* @description Initialize array using ElementList (ElementList , Elisionopt AssignmentExpression) when index property (read-only) exists in Array.prototype (step 6) | |
*/ | |
function testcase() { | |
try { | |
Object.defineProperty(Array.prototype, "1", { | |
value: 100, | |
writable: false, | |
configurable: true | |
}); | |
var arr = [101, 12]; | |
return arr.hasOwnProperty("1") && arr[1] === 12; | |
} finally { | |
delete Array.prototype[1]; | |
} | |
} | |
runTestCase(testcase); |