Thank the creator of Elm and BDFL, Evan Czaplicki.

I would highly recommend reading the guide and writing elm code before watching any videos.

• Read the Guide. This is a gitbook by the creator of Elm
• Try Elm out in the browser. (Hint - try the stuff from the book)
• Watch a video series to remind yourself of the concepts.
• Complete the Elm for beginners course over the weekend
• Complete the exercises for that course
• Oh! And setup your computer to to Eλmy stuff:

• Install NodeJS LTS
• Install elm with npm install -g elm
• Configure atom.
  • elm-oracle, elm-format, linter-elm-make to lint on save.

• Code is the Easy Part by Evan Czaplicki

ELM Apps use this terminology for talking about it's design pattern.

• Model
• Update
• View
• Subscribers
• Commands

Nice overview video of the architecture

Everything is an expression in elm, that's why theres no return statement

All data is immutable in Elm

Elm is strongly typed - there is not implicit type conversion. If a function takes a String you can't give it a Number, you must explicitly convert it to a String (2 -> "2")

Elm has a friendly compiler :) Very verbose and likes to suggest things.

• No Side effects
• Reusable
• Composable
• Testable
• Cacheable
• ...

Import everything from Html into our modules namespace

import Html exposing (..)

Import a few things from Html into our modules namespace

import Html exposing (text, div)

Parameterized type

view : Model -> Html Msg

Union type

type Msg
  = Increment
  | Decrement

Type aliasing (call an Int by Model)

type alias Model =
  Int

random questions What is the technical difference between a statement and an expression?

Example : if/else in Elm, vs. if in other langs.

If elm is meant for front end web applications why does the html package come seperate?

Baby app ideas:

• Show random ascii art face
• Searchable ascii art faces (face with searchable keywords, click to show matching faces)