`Apply`'s `mapN` takes in at most 10 params (0.10....

# arrow

[isto]

`Apply`'s mapN takes in at most 10 params (0.10.5), any tips how to workaround a case where there's more than 10

[isto]

previously I used ap but that approach has issues with kotlin 1.4 new type inference

[pakoito]

just nest them 😄

[Jannis]

^^ Either nest them or manually add higher arities, for reference the implementation is here: https://github.com/arrow-kt/arrow-core/blob/master/arrow-core-data/src/main/kotlin/arrow/typeclasses/Apply.kt

[isto]

do you have some simple example of nesting?

[Jannis]

mapN(a1, a2, tupledN(a3, a4)) { (a, b, cd) -> ... }

Something like this. Not the prettiest, but it'll work

[isto]

ok, thanks