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/**
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* Get nth item of Array. Negative for backward
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*/
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export function at(array, index) {
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const len = array.length;
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if (!len)
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return undefined;
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if (index < 0)
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index += len;
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return array[index];
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}
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export function last(array) {
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return array[array.length - 1];
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}
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