Longest Word in Elixir

Longest Word

in Elixir

Welcome to the Longest Word in Elixir page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

defmodule LongestWord do
  @doc """
  Returns the length of the longest word in the first argument of the argument list.

  Returns a usage message if no argument or an empty string is provided.  
  """
  @spec main(argv :: list(String.t())) :: {:ok, integer()} | :error
  def main(["" | _]), do: :error
  def main([str]) do
    res = str
      |> String.split()
      |> Enum.max_by(&String.length/1)
      |> String.length()
    {:ok, res}
  end
  def main(_), do: :error
end

case LongestWord.main(System.argv()) do
  {:ok, res} -> IO.puts(res)
  :error -> IO.puts("Usage: please provide a string")
end

Longest Word in Elixir was written by:

• Ricardo Mapurunga Junior

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.