/// Copyright (c) 2009 Microsoft Corporation /// /// 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 Microsoft 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. ES5Harness.registerTest({ id: "15.4.4.14-9-a-5", path: "TestCases/chapter15/15.4/15.4.4/15.4.4.14/15.4.4.14-9-a-5.js", description: "Array.prototype.indexOf - deleted properties in step 5 are visible here on an Array-like object", test: function testcase() { var arr = { 10: false, length: 30 }; var fromIndex = { valueOf: function () { delete arr[10]; return 3; } }; return -1 === Array.prototype.indexOf.call(arr, false, fromIndex); }, precondition: function prereq() { return fnExists(Array.prototype.indexOf); } });