test262/test/language/expressions/logical-not/S11.4.9_A3_T4.js

19 lines
385 B
JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: Operator !x returns !ToBoolean(x)
es5id: 11.4.9_A3_T4
description: Type(x) is undefined or null
---*/
//CHECK#1
if (!void 0 !== true) {
$ERROR('#1: !void 0 === true');
}
//CHECK#2
if (!null !== true) {
$ERROR('#2: !null === true');
}