mirror of https://github.com/tc39/test262.git
20 lines
423 B
JavaScript
20 lines
423 B
JavaScript
function shouldBe(actual, expected) {
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if (actual !== expected)
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throw new Error('bad value: ' + actual);
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}
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{
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let array = [42, , , 0];
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shouldBe(array.lastIndexOf(Number.NaN), -1);
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shouldBe(array.lastIndexOf(0), 3);
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}
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{
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let array = [42.195, , , 0];
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shouldBe(array.lastIndexOf(Number.NaN), -1);
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}
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{
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let array = [42.195, Number.NaN, , 0];
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shouldBe(array.lastIndexOf(Number.NaN), -1);
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}
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