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20 lines
861 B
JavaScript
20 lines
861 B
JavaScript
/// Copyright (c) 2012 Ecma International. All rights reserved.
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/// Ecma International makes this code available under the terms and conditions set
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/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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/// "Use Terms"). Any redistribution of this code must retain the above
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/// copyright and this notice and otherwise comply with the Use Terms.
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/**
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* @path ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-5-14.js
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* @description Array.prototype.lastIndexOf - value of 'fromIndex' is a number (value is NaN)
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*/
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function testcase() {
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return [0, true].lastIndexOf(true, NaN) === -1 && // from Index will be convert to +0
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[true, 0].lastIndexOf(true, NaN) === 0 &&
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[0, true].lastIndexOf(true, -NaN) === -1 &&
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[true, 0].lastIndexOf(true, -NaN) === 0;
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}
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runTestCase(testcase);
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