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shahryarjb/factorial.exs

Created April 21, 2017 10:10
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factorial.exs
# my blog : https://trangell.com/fa/
# public : http://iranonrails.ir
defmodule Factorial do
def of(0), do: 1
def of(n), do: n * of(n - 1)
end
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defmodule Factorial do
  def of(0), do: 1
  def of(n) when n > 0 do
    n * of(n-1)
  end
end

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