1 /// Copyright (c) 2009 Microsoft Corporation
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3 /// Redistribution and use in source and binary forms, with or without modification, are permitted provided
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4 /// that the following conditions are met:
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5 /// * Redistributions of source code must retain the above copyright notice, this list of conditions and
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6 /// the following disclaimer.
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7 /// * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
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8 /// the following disclaimer in the documentation and/or other materials provided with the distribution.
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9 /// * Neither the name of Microsoft nor the names of its contributors may be used to
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10 /// endorse or promote products derived from this software without specific prior written permission.
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12 /// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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13 /// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 /// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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15 /// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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16 /// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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17 /// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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18 /// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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19 /// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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22 ES5Harness.registerTest({
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24 id: "15.4.4.15-2-15",
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26 path: "TestCases/chapter15/15.4/15.4.4/15.4.4.15/15.4.4.15-2-15.js",
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28 description: "Array.prototype.lastIndexOf when 'length' is undefined property on an Array-like object",
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30 test: function testcase() {
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32 var obj = { 0: null, 1: undefined };
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34 return Array.prototype.lastIndexOf.call(obj, null) === -1;
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37 precondition: function prereq() {
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38 return fnExists(Array.prototype.lastIndexOf);
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