MonkeyIsNull

(ns countries.core
  (:gen-class))

(def countries {
:AF "Afghanistan",
:AX "Åland Islands",
:AL "Albania",
:DZ "Algeria",
:AS "American Samoa",
:AD "Andorra",

MonkeyIsNull

defmodule Catstore do
  def start() do
    {:ok, store} = Agent.start(fn -> ["Biggles"] end)
    store
  end

  def pr_cats(cats) do
    Enum.each(cats, fn cat -> IO.puts cat end)
  end

MonkeyIsNull

defmodule Catstore do
  def start() do
    {:ok, store} = Agent.start(fn -> ["Biggles"] end)
    store
  end

  def pr_cats(cats) do
    Enum.each(cats, fn cat -> IO.puts cat end)
  end

MonkeyIsNull

defmodule LlCatStore do

  def loop(cats) do
    receive do
      {:add, cat} ->
          IO.puts "adding cat #{cat}"
          loop([cat | cats])
      {:remove, cat} ->
          IO.puts "removing cat #{cat}"
          loop(remove_cat(cat, cats))

MonkeyIsNull

defmodule Foo do
  def sleep(num) do
   :timer.sleep(num)
   self()
 end
end

t = Task.async(fn -> Foo.sleep(15000) end)
IO.inspect Task.await(t, 20000)

MonkeyIsNull

defmodule Fr do

  def read_file(f) do
    File.read!(f)
  end

  def to_s(num) do
    Integer.to_string(num)
  end

MonkeyIsNull

Enum.reduce(Enum.map([1,2,3,4], fn(x) -> x*2 end), 0, fn(x,acc) -> x + acc end)

MonkeyIsNull

def greeter() do
    fn
      :droid -> IO.puts "Yikes, a droid"
      "Han Solo" -> :pilot
      %{:name => name, :droid => true} -> name <> "-NG"
      {droid, human, stormtrooper} -> IO.puts "#{droid}'s rule!"
      any -> :ok
   end
end
  

MonkeyIsNull

sum = &(&1 + &2 + &3 + &4)
sum.(4,4,4,4)

MonkeyIsNull

defmodule Modfuncs do

  def modelx(%{:name => name, :droid => true}) do
    name <> "-NG"
  end

  def modelx(%{:name => name, :droid => false}) do
    name
  end
end