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22 lines
576 B
JavaScript
22 lines
576 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 = [42.195, -0.0, -Infinity];
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shouldBe(array.lastIndexOf(Infinity), -1);
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shouldBe(array.lastIndexOf(-Infinity), 2);
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shouldBe(array.lastIndexOf(42), -1);
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}
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{
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let array = [1, 2, 3, 0];
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shouldBe(array.lastIndexOf(Infinity), -1);
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shouldBe(array.lastIndexOf(-Infinity), -1);
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}
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{
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let array = ["String", 42.5, Infinity, 33];
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shouldBe(array.lastIndexOf(Infinity), 2);
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shouldBe(array.lastIndexOf(-Infinity), -1);
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}
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