package batteries

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A community-maintained standard library extension

Install

md5=66b6e0b25769fc2363972c6a6ab6ac33

sha256=584d314cbaa5485e26d08ce87f7d7ff49043d9096101f2641b59def9aa6d7d71

A signature for data structures which have a map : ('a -> 'b) -> ('a t -> 'b t) operation.

If you create a new data structure, you should make it compatible with Mappable.

type 'a mappable

The data structure, e.g. 'a List.t

val map : ('a -> 'b) -> 'a mappable -> 'b mappable

map f e applies f to every element of e and returns the corresponding data structure