13 lines
250 B
JavaScript
13 lines
250 B
JavaScript
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export default function(a, b) {
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function compose(x, y) {
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return x = a(x, y), b(x[0], x[1]);
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}
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if (a.invert && b.invert) compose.invert = function(x, y) {
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return x = b.invert(x, y), x && a.invert(x[0], x[1]);
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};
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return compose;
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}
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