+ Operators for map2 and map3 #624
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||>
which takes a tuple on the left side and applies each argument to a function on the right side|>>
which takes a value inside a functor and maps with a function on the right sideTherefore it would make sense to have:
||>>
which takes a tuple with two functors and maps with a function on the right side. The iszip
andmap
or simplymap2
.Then it makes sense to add
|||>>
and the less idiomatic flipped versions<<||
and<<|||
.In the wild I've seen already cases where we have pipes with
|>>
and in the middle the need to switch to applicative (<!>
,<*>
) style, which breaks a bit the nice piping, In most of those cases these operators will be a good solution.Open question about
||>>>
and|||>>>
.