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matcha_addict@lemy.lol Joined: 2023-07-09

I've been enjoying learning ocaml, but I found it very easy to write code riddled with side effects and imperative-ness.

Take this example:

let some_func arg = 
  let input = format_input_from_stdin ()
  let read_content = read_file "some/file/path.txt"
  let to_write = get_write_file_content input read_content
  let () = write_file "some/other/path.txt" to_write 
  let output = run_external_command_with_output 
  (output, read_content)

As you can see, many side effects and imperative steps in the code. Is there a better practice for coding this in a functional manner?

Welcome to the nostalgia-filled piefed instance of yesteryear.

Open Registration with Application questionnaire.

If you have a question or comment you can post in !meta@retrofed.com or message @DosDude@retrofed.com or @Die4Ever@retrofed.com

In case of downtime and/or emergency, we will post updates on @DosDude@mastodon.social

Some rules we try to uphold:

Be civil. Bigotry is not welcome. This includes (but is not limited to): transphobia, queerphobia, racism, ageism and ableism. We do not promote hate.
Communities need to be Retro or Retro-adjacent.
Please don't upload pornographic content. (use an external image host for that)