brweber2

# Use this code and data to answer the questions.

defmodule Millenium.Falcon do
  def rebel?(c = %{rebel: true}) do
    c.type != :droid
  end

  def rebel?(_), do: false

  def fill_ship(characters) do

brweber2

characters = [
  %{name: "Han",        type: :human,   rebel: true,    weight: 185},
  %{name: "Jabba",      type: :hutt,    rebel: false,   weight: 2200},
  %{name: "Chewie",     type: :wookie,  rebel: true,    weight: 350},
  %{name: "r2d2",       type: :droid,   rebel: true,    weight: 250},
  %{name: "Luke",       type: :human,   rebel: true,    weight: 140},
  %{name: "Boba Fett",  type: :human,   rebel: false,   weight: 175},
]

# Note that there is more than one correct answer for all of these!

brweber2

# Create a variable has_seen_star_wars and set it to true.
has_seen_star_wars = true

# Write code that prints "Ready for class" if you have seen at least one Star Wars movie (has_seen_star_wars).
if has_seen_star_wars do
  IO.puts "Ready for class"
end

# Flip has_seen_star_wars to false.
has_seen_star_wars = false

brweber2

defmodule WhatHappensIn_1_3 do

  def some_func() do
    receive do
      {from, message} -> 
        send from, "hello #{inspect message}"
        some_func()
      _ ->
        IO.puts "quittin' time"
    end

brweber2

    # this is using sweet_xml
    xml_string = File.read!("some_file.xml")
    try do
      Logger.info(self()) # it does not work without this ... wat?
      {:ok, xml} = Parser.parse(xml_string)
      process_xml(conn, xml_string, xml)
    rescue
      e ->
        Logger.info("ignoring unparseable XML file: #{inspect xml_string}")
        render(conn, "empty.json")

brweber2

  def magic(nbr) do
    a = ~x(a1b2c3d4)
    b = ~x(d4c3b2a1)
    c = ~x(a1b23c4d)
    d = ~x(4d3cb2a1)
    case nbr do
      ^a -> %Pcap.Global.MagicNumber{ magic_number: nbr, swap_fields: false, nanoseconds: false }
      ^b -> %Pcap.Global.MagicNumber{ magic_number: nbr, swap_fields: true, nanoseconds: false }
      ^c -> %Pcap.Global.MagicNumber{ magic_number: nbr, swap_fields: false, nanoseconds: true }
      ^d -> %Pcap.Global.MagicNumber{ magic_number: nbr, swap_fields: true, nanoseconds: true }

brweber2

defmodule Benum do
  defimpl Enumerable, for: BitString do
    def count(collection) when is_binary(collection) do
      {:ok, Enum.reduce(collection, 0, fn v, acc -> acc + 1 end)}
    end
    def count(collection) do
      {:error, __MODULE__}
    end
    def member?(collection, value) when is_binary(collection) do
      {:ok, Enum.any?(collection, fn v -> value == v end)}

brweber2

vagrant@vagrant-ubuntu-trusty-64:~/irr/irr$ mix deps.compile
==> gen_smtp (compile)
Compiling src/smtp_rfc822_parse.yrl failed:
ERROR: compile failed while processing /home/vagrant/irr/irr/deps/gen_smtp: rebar_abort
** (Mix) Could not compile dependency gen_smtp, /home/vagrant/.mix/rebar command failed. If you want to recompile this dependency, please run: mix deps.compile gen_smtp

brweber2

defmodule Permutations do

  @moduledoc """

    An answer to the problem from: http://www.theguardian.com/science/alexs-adventures-in-numberland/2015/may/20/can-you-do-the-maths-puzzle-for-vietnamese-eight-year-olds-that-has-stumped-parents-and-teachers

    iex> Permutations.main parallel: false

    iex> Permutations.main parallel: true
  """

brweber2

defmodule Clockout.MyViewHelpers do

  def display_name(:client, id) do
    Clockout.Client |> display_name_by_id(id)
  end

  def display_name(:person, id) do
    Clockout.Person |> display_name_by_id(id)
  end