/// 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. /** * @path ch11/11.4/11.4.1/11.4.1-5-2.js * @description delete operator returns false when deleting a direct reference to a function argument */ function testcase() { function foo(a,b) { // Now, deleting 'a' directly should fail // because 'a' is direct reference to a function argument; var d = delete a; return (d === false && a === 1); } return foo(1,2); } runTestCase(testcase);