camel_case.ex

defmodule CamelCase do
  def to_camel_case(word) do
    words = String.codepoints(word)
    convert("-", words) |> Enum.join("")
  end

  def convert(a, []) do
    []
  end

  def convert(a, [ a | [h|t] ]) do
    [String.upcase(h) | convert(a, t)]
  end

  def convert(a, [h|t]) do
    [h | convert(a, t)]
  end
end

CamelCase.to_camel_case("the-stealth-warrior") |> IO.inspect