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export default function(array, f) { |
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if (f == null) f = pair; |
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var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n); |
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while (i < n) pairs[i] = f(p, p = array[++i]); |
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return pairs; |
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} |
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export function pair(a, b) { |
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return [a, b]; |
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}
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