JezK
Edit File: strict-equals.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. var n = null; var u = void 0; assertTrue(null === null); assertTrue(null === n); assertTrue(n === null); assertTrue(n === n); assertFalse(null === void 0); assertFalse(void 0 === null); assertFalse(u === null); assertFalse(null === u); assertFalse(n === u); assertFalse(u === n); assertTrue(void 0 === void 0); assertTrue(u === u); assertTrue(u === void 0); assertTrue(void 0 === u); assertTrue('foo' === 'foo'); assertFalse('bar' === 'foo'); assertFalse('foo' === new String('foo')); assertFalse(new String('foo') === new String('foo')); var s = new String('foo'); assertTrue(s === s); assertFalse(s === null); assertFalse(s === void 0); assertFalse('foo' === null); assertFalse('foo' === 7); assertFalse('foo' === true); assertFalse('foo' === void 0); assertFalse('foo' === {}); assertFalse({} === {}); var x = {}; assertTrue(x === x); assertFalse(x === null); assertFalse(x === 7); assertFalse(x === true); assertFalse(x === void 0); assertFalse(x === {}); assertTrue(true === true); assertTrue(false === false); assertFalse(false === true); assertFalse(true === false); assertFalse(true === new Boolean(true)); assertFalse(true === new Boolean(false)); assertFalse(false === new Boolean(true)); assertFalse(false === new Boolean(false)); assertFalse(true === 0); assertFalse(true === 1); assertTrue(0 === 0); assertTrue(-0 === -0); assertTrue(-0 === 0); assertTrue(0 === -0); assertFalse(0 === new Number(0)); assertFalse(1 === new Number(1)); assertTrue(4.2 === 4.2); assertTrue(4.2 === Number(4.2));