Call functions from shell using scripts

Questions & Help Questions
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1

Hi there,

I have a script named ListModules.exs that contains the below,

defmodule ListModule do
  def sum([]), do: 0

  def sum([head | tail]) do
    head + sum(tail)
  end
end

How can I run the above from a windows shell and call the function sum()?

I tried to run elixir -r ListModule.exs -e "ListModule.sum([])" and I don’t get back anything. If I try to parse the list [1,2,3] to the list argument it gives me the following error: "!VAR:" was unexpected at this time.

Any help is welcome.

Regards,