Elixir - Quicksort sample

quicksort.exs

defmodule Quicksort do
  def sort(list) when length(list) < 2, do: list
  def sort(list) do
    pivot = Enum.random(list)
    less = Enum.filter(list, &(&1 < pivot))
    greater = list -- (less ++ [pivot])
    sort(less) ++ [pivot] ++  sort(greater)
  end
end

["cherries", "grapes", "kiwi", "grapes", "avocado", "pineapple", "peach"]
|> Quicksort.sort
|> IO.inspect