23 lines
508 B
Text
23 lines
508 B
Text
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lhs test
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========
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``unsplit`` is an arrow that takes a pair of values and combines
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them to return a single value:
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> unsplit :: (Arrow a) => (b -> c -> d) -> a (b, c) d
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> unsplit = arr . uncurry
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> -- arr (\op (x,y) -> x `op` y)
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``(***)`` combines two arrows into a new arrow by running the two
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arrows on a pair of values (one arrow on the first item of the pair
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and one arrow on the second item of the pair).
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::
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f *** g = first f >>> second g
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Here is a block quote section.
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