test262/test/language/expressions/delete/11.4.1-4.a-9.js

18 lines
541 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
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-9
description: >
delete operator returns false when deleting a non-configurable
data property (Math.LN2)
flags: [noStrict]
---*/
var d = delete Math.LN2;
assert.sameValue(d, false, 'd');