patrickgombert

class Reader
  def read
    return get.chomp()
  end
end

class Writer
  def write(chars)
    puts chars
  end

patrickgombert

class Reader
  def read
    file = File.new("readfile.rb", "r")
    return file.gets
  end
end

class Writer
  def write(chars)
    file = File.new("readfile.rb", "w")

patrickgombert

### We are highlighting a workflow to retrieve Employees who
### have the title of department leaders.
### The web entry point comes through the controller,
### but it's important for the controller to have no logic.
### It simply knows that it must call the department leaders
### method on the interactor.

class EmployeeController < ApplicationController
  def get_department_leaders
    leaders = Interactor::Employees.get_deparment_leaders

patrickgombert

                    MMMM                              MMM
                   MM: 8M                           MMM$I7
                   MM: OM                          MMM7I7MM
                   MM, $M                        MMD7IIDMM
                   MM, 7M                       MM8III8M
                   MO. ?MM                    MMOIIIOM
                   M$  =MM                 MMMZIIIZMM
                   M7  =MM                MMM$III$MM
                  MM?  :MM              MMM7III7MM
                  MM+  :MM             MMN7III7M

patrickgombert

require 'timer'

unless defined?(REQUIRED_SPEC_HELPER)
  REQUIRED_SPEC_HELPER = true
  File.open("spec_helper_times.yml", 'a+') do |file|
    date_time = DateTime.now.strftime("%m%d%y%H%M")
    time = Time.now
    Kernel.load("spec_helper.rb", true)
    final_time = Time.now - time
    file << "#{date_time}: #{final_time}\n"

patrickgombert

change(Amount) ->                                                                                 % => Binding 2 x 1
    {Coins, _} = lists:foldl(fun(Denom, {Coins, Total}) ->                                        % => Invocation 2 x 1, Binding 4 x 1, Constant 1 x 1
                                Floor = floor(Total / Denom),                                     % => Binding 1 x 1, Invocation 2 x 2                                                                                                                                    
                                {Coins ++ lists:duplicate(Floor, Denom), Total - (Floor * Denom)} % => Invocation 2 x 4
                              end, {[], Amount}, [25, 10, 5, 1]),                                 % => Constant 2 x 1
    Coins.

% Total = 2 + 2 + 4 + 1 + 1 + 4 + 8 + 2 = 24

patrickgombert

anwer(foo, Args) ->  % pattern match the arguments
  answer_to_foo;     % notice the semi-colon

answer(bar, Args) ->
  case Delicious of
    veggies ->
      false;         % Again, notice the semi colon
    bacon ->         % case is another form of pattern matching
      true           % The last statement in the case has no punctuation
  end;

patrickgombert

defmodule Db do
  use GenServer.Behaviour

  ## API

  def start() do
    :gen_server.start({:local, :db}, __MODULE__, [], [])
  end

  def store(key, val) do

patrickgombert

-module(shell).

-export([loop/0, eval_loop/0, eval/2]).

read() ->
  io:get_line("> ").

eval(String, Bindings) ->
  {ok, Tokens, _} = erl_scan:string(String),
  {ok, Parsed} = erl_parse:parse_exprs(Tokens),

patrickgombert

post "/:something" do
    conn = conn.resp_content_type("text/plain")
    conn = conn.resp_body("This does not exist")
    conn = conn.status(404)
    conn
end

test "it returns a 404" do
    conn = post("/not-real")