joeybaer

defmodule CreditCard do
  def valid?(number) do
    number
    |> Integer.digits()
    |> process_digits()
    |> Enum.sum()
    |> rem(10) == 0
  end
  defp process_digits(digits) do
    length = Enum.count(digits)

joeybaer

defmodule Bus do
  def number(stops) do
    stops
    |> Enum.reduce(0, fn {x, y}, acc -> acc + (x - y) end)
  end
end

joeybaer

Keybase proof

I hereby claim:

• I am joeybaer on github.
• I am joeybaer (https://keybase.io/joeybaer) on keybase.
• I have a public key ASA9DmZFQgFcZg4TdneHS-_9R6RzL313Y281foL47sUrsgo

To claim this, I am signing this object: