test262/test/language/expressions/delete/11.4.1-4.a-4.js

27 lines
901 B
JavaScript

// 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.
/*---
info: >
This test is actually testing the [[Delete]] internal method (8.12.8). Since the
language provides no way to directly exercise [[Delete]], the tests are placed here.
es5id: 11.4.1-4.a-4
description: >
delete operator returns false when deleting a non-configurable
data property (NaN)
flags: [noStrict]
includes: [runTestCase.js]
---*/
function testcase() {
// NaN (15.1.1.1) has [[Configurable]] set to false.
var d = delete NaN;
if (d === false) {
return true;
}
}
runTestCase(testcase);