Defining pointfree-style functions in functional programming. What are the cons / pros?

Question

Every time I write something from a form

let scorePopulation f population =
  Array.map (fun i -> f i) population

Ultimately, I ask myself if it’s better to write

let scorePopulation f =
  Array.map (fun i -> f i)

instead of this. Is there an advantage in writing it in the first form, and not in the second?

Also, what would you call a function definition in the first form and in the second form?

Answer 1

You can go even further:

let scorePopulation = Array.map

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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let f = function [] -> "empty" | x::_ -> "not empty"

let f l = match l with [] -> "empty" | x::_ -> "not empty"

let f = List.map g |> List.fold_left h

let f l = List.map g (List.fold_left h l)

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