58 lines
2.5 KiB
JavaScript
58 lines
2.5 KiB
JavaScript
/// Copyright (c) 2009 Microsoft Corporation
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///
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/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
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/// that the following conditions are met:
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/// * Redistributions of source code must retain the above copyright notice, this list of conditions and
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/// the following disclaimer.
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/// * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
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/// the following disclaimer in the documentation and/or other materials provided with the distribution.
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/// * Neither the name of Microsoft nor the names of its contributors may be used to
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/// endorse or promote products derived from this software without specific prior written permission.
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///
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/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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ES5Harness.registerTest({
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id: "15.4.4.14-3-19",
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path: "TestCases/chapter15/15.4/15.4.4/15.4.4.14/15.4.4.14-3-19.js",
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description: "Array.prototype.indexOf when value of 'length' is an Object which has an own toString method.",
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test: function testcase() {
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// objects inherit the default valueOf() method from Object
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// that simply returns itself. Since the default valueOf() method
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// does not return a primitive value, ES next tries to convert the object
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// to a number by calling its toString() method and converting the
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// resulting string to a number.
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var obj = {
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1: true,
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2: 2,
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length: {
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toString: function () {
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return '2';
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}
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}
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};
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return Array.prototype.indexOf.call(obj, true) === 1 &&
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Array.prototype.indexOf.call(obj, 2) === -1;
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},
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precondition: function prereq() {
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return fnExists(Array.prototype.indexOf);
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}
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});
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