• 4wd
    202·
    6 months ago

    In Elixir, we mark statuses by using a question mark at the end of the variable name. Something like this:

    authorized? = user |> get_something() |> ensure_authorized?()

    I like this better than the is_ prefix

    • alexdeathway
      9·
      6 months ago

      does ‘?’ have type definition in elixir or this is generally agreed design pattern?

      • Faresh@lemmy.mlEnglish
        8·
        6 months ago

        If it’s like Lisp, then ? is just part of the symbol and doesn’t have any special syntatic meaning. In different Lisps it’s also convention to end predicate names with a ? or with P (p for predicate)

      • FMT99@lemmy.world
        2·
        6 months ago

        We do this in Ruby all the time, we just prefer methods over variables, usually.

        def authorized?
  current_user&.authorized?
end
        • cytokine0724@sh.itjust.works
          2·
          6 months ago

          I’m a principal backend engineer routinely writing Ruby for my day job, so I’m familiar, lol. But you can’t do it for local variables and that just sucks. Definitely a +1 for Elixir.