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27 lines
1.0 KiB
JavaScript
27 lines
1.0 KiB
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 ch15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-c-ii-19.js
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* @description Array.prototype.reduce - value of 'accumulator' used for first iteration is the value of least index property which is not undefined when 'initialValue' is not present on an Array
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*/
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function testcase() {
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var called = 0;
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var result = false;
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function callbackfn(prevVal, curVal, idx, obj) {
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called++;
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if (idx === 1) {
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result = (prevVal === 11) && curVal === 9;
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}
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}
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[11, 9].reduce(callbackfn);
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return result && called === 1;
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}
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runTestCase(testcase);
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