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Lists' processing

3. "Dataflow" operator(s)
   All the preceding functions (map, filter, map2, etc.), and many more, can be found in List module.
   As a complement, these functions can be manipulated more easily with the "pipes" operator(s):

let (|>) x f = f x;;

([1;2] @ [3]) |> List.filter (fun x->(x%2)=0) |> List.map ((+) 1);;

Nb. Most of the functions have remarkable properties usable, for instance, for distributed computing:

List.map f (l1@l2) = (List.map f l1)@(List.map f l2);;

[|1;2;3|] |> Array.Parallel.map ((+) 1);;

Nb. Lists can be easily replaced by Arrays, Sequences, etc. to improve computation times (see. for instance Array.toList or List.ofArray functions).

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