andrewhao

module MyApp.MyModule do
  @my_collaborating_module Application.get_env(:my_app, :my_collaborating_module)

  def perform() do
    @my_collaborating_module.do_something()
  end
end

andrewhao

defmodule Game do
  use GenServer

  def init(game_id) do
    {:ok, %{game_id: game_id}}
  end

  def start_link(game_id) do
    GenServer.start_link(__MODULE__, game_id, name: {:global, "game:#{game_id}"})
  end

andrewhao

module MyApp.Alexa do
  def call do
    # ...
    get_country_and_zip_code(device_id, consent_token)
    |> do_some_other_transformation
    # ...
  end

  defp get_country_and_zip_code(device_id, consent_token) do
    url =

andrewhao

type alias Model =
    { name : String
    , phone : String
    }


model : Model
model =
    { name = ""
    , phone = ""

andrewhao

# -----------------------------
# Passenger (Experience) Domain
# -----------------------------
module Passenger
  # app/domains/passenger/find_driver_match.rb
  class FindDriverMatch
    include Wisper::Publisher

    def call(passenger, ride_requirements)
      # Publishes the event (a fact), but lets someone else do the rest of the hard work.

andrewhao

-- Todo.elm
import Html exposing (Html, Attribute, button, div, ul, li, h1, text, input)
import Html.Attributes exposing (..)
import Html.Events exposing (onClick, onInput)

main =
  Html.beginnerProgram { model = model, view = view, update = update }


-- MODEL

andrewhao

Session 1

Welcome to the :c5: Elm study sessions! In this 45-minute session Zoe and Andrew are going to try to lead you through the basics of the Elm language.

You will leave this session with a decent understanding of the core language.

What is Elm?

Elm is a strongly-typed language developed by Evan Czaplicki (apparently, a high school classmate of Sue Anna's). It was a MIT senior thesis project of his (see his paper) in 2012.

andrewhao

module Ridesharing
  class RidesController < ApplicationController
    def post
      # Hail a time-traveling Delorean: 
      HailDelorean.hail(current_user.id)
      render text: 'Hailing a cab, please wait for a response...'
    end
  end
end

andrewhao

module Ridesharing
  class DriverController
    append_view_path(‘app/domains’)
  end
end

andrewhao

<?xml version="1.0" encoding="utf-8" ?>
<!ELEMENT tsung (information?, clients, servers, monitoring?, load, options?, sessions)>

<!ELEMENT information (name|description|username|organisation)*>


<!ELEMENT name (#PCDATA)>
<!ELEMENT description (#PCDATA)>
<!ELEMENT username (#PCDATA)>
<!ELEMENT organisation (#PCDATA)>