Simplest way i know:

for x <- 0..10, do: IO.puts x

I also think there is one benefit for basically everyone of implementing various types of loops explicitly using recursion, and that is to understand what is really going on. So while you might most of the time use libraries or provided constructs instead of actually explicitly doing yourself, really knowing what is going will make you a better programmer. It will allow you use libraries and provided constructs in a better way.

Robert

If you wanted to implement a for loop as a re-usable concept, for the sake of understanding Elixir, recursion, pattern matching etc, then sure I might do things very slightly differently;

defmodule ForLoop do

  def for_loop(count, action) when is_integer(count) and is_function(action) do
    loop(action, count, 0)
  end

  defp loop(_action, count, acc) when acc > count, do: :ok
  defp loop(action, count, acc) when acc <= count do
      action.(acc)
      loop(action, count, acc+1)
  end

end

However, in real life I’d just do as @thousandsofthem suggests, or use Enum.each:

Enum.each(0..10, &(IO.puts(&1)))