Learn ELM with Real Code Examples
Updated Nov 20, 2025
Learning Path
Learn basic functional programming concepts
Understand immutable data and pure functions
Practice The Elm Architecture (TEA)
Build small interactive web apps
Progress to larger SPA projects
Skill Improvement Plan
Week 1: Basics of Elm syntax and types
Week 2: Functions, pattern matching, and modules
Week 3: Elm Architecture and building simple apps
Week 4: Managing side effects with Cmd and Sub
Week 5: Integrating Elm with JavaScript and testing
Interview Questions
What is The Elm Architecture (TEA)?
How does Elm prevent runtime exceptions?
Explain pattern matching in Elm
How do Cmd and Sub manage side effects?
Compare Elm with JavaScript or TypeScript for front-end development
Cheat Sheet
type alias Model = { count : Int }
init : Model = { count = 0 }
type Msg = Increment | Decrement
update : Msg -> Model -> Model
view : Model -> Html Msg
Books
Programming Elm by Jeremy Fairbank
Elm in Action by Richard Feldman
The Elm Guide (official online resource)
Tutorials
Elm for Beginners
The Elm Architecture in Practice
Building SPAs with Elm
Official Docs
Elm Guide (guide.elm-lang.org)
Elm API Documentation
Elm Packages Documentation
Elm Compiler Documentation
Elm Reactor Documentation
Community Links
Elm Discourse forum
Elm Slack and Discord communities
Elm subreddit
GitHub Elm repositories
ElmConf
Community Support
Elm Discourse forums
Elm Slack and Discord communities
Elm subreddit
GitHub Elm repositories
ElmConf annual conference