Programming

I may be expressing it poorly and inaccurately, but what I mean is that in Nim you can re-order arguments and functions to start with some data followed by a series of transformations. The following two lines are equivalent:

parse_int(read_line(stdin))
stdin.read_line().parse_int()

Roc offers a similar flow with their |> operator. Here's a snippet from one of my Advent of Code 2022 solutions:

partOne =
    "input.txt"
    |> getData
    |> Task.await \data ->
        data
        |> getRangePairs
        |> List.keepIf pairHasStrictSubset
        |> List.len
        |> Num.toStr
        |> Stdout.line