Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
ATL JS: Intro to Elm
Search
Jeremy Fairbank
November 28, 2017
Programming
0
110
ATL JS: Intro to Elm
Jeremy Fairbank
November 28, 2017
Tweet
Share
More Decks by Jeremy Fairbank
See All by Jeremy Fairbank
Connect.Tech 2020: Advanced Cypress Testing
jfairbank
1
210
CodeMash 2020: Solving the Boolean Identity Crisis
jfairbank
1
160
CodeMash 2020: Practical Functional Programming
jfairbank
1
330
Connect.Tech 2019: Practical Functional Programming
jfairbank
0
360
Connect.Tech 2019: Solving the Boolean Identity Crisis
jfairbank
0
180
Lambda Squared 2019: Solving the Boolean Identity Crisis
jfairbank
0
130
All Things Open 2018: Practical Functional Programming
jfairbank
2
270
Connect.Tech 2018: Effective React Testing
jfairbank
1
170
Fluent Conf 2018: Building web apps with Elm Tutorial
jfairbank
2
860
Other Decks in Programming
See All in Programming
はじめてのDSPy - 言語モデルを『プロンプト』ではなく『プログラミング』するための仕組み
masahiro_nishimi
2
220
kiroとCodexで最高のSpec駆動開発を!!数時間で web3ネイティブなミニゲームを作ってみたよ!
mashharuki
0
170
Swift Concurrency - 状態監視の罠
objectiveaudio
2
520
Android16 Migration Stories ~Building a Pattern for Android OS upgrades~
reoandroider
0
110
Web Components で実現する Hotwire とフロントエンドフレームワークの橋渡し / Bridging with Web Components
da1chi
3
2.4k
2分台で1500examples完走!爆速CIを支える環境構築術 - Kaigi on Rails 2025
falcon8823
3
3.6k
登壇は dynamic! な営みである / speech is dynamic
da1chi
0
310
Devvox Belgium - Agentic AI Patterns
kdubois
1
120
Software Architecture
hschwentner
6
2.3k
Advance Your Career with Open Source
ivargrimstad
0
520
Server Side Kotlin Meetup vol.16: 内部動作を理解して ハイパフォーマンスなサーバサイド Kotlin アプリケーションを書こう
ternbusty
3
180
CSC305 Lecture 06
javiergs
PRO
0
230
Featured
See All Featured
Learning to Love Humans: Emotional Interface Design
aarron
274
41k
A designer walks into a library…
pauljervisheath
209
24k
For a Future-Friendly Web
brad_frost
180
9.9k
The Straight Up "How To Draw Better" Workshop
denniskardys
238
140k
Six Lessons from altMBA
skipperchong
28
4k
How GitHub (no longer) Works
holman
315
140k
Mobile First: as difficult as doing things right
swwweet
224
10k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
20
1.2k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Fireside Chat
paigeccino
40
3.7k
Rebuilding a faster, lazier Slack
samanthasiow
84
9.2k
Reflections from 52 weeks, 52 projects
jeffersonlam
352
21k
Transcript
Intro to Elm Jeremy Fairbank @elpapapollo / jfairbank
Software is broken. We are here to fix it. Say
[email protected]
Functional and statically typed programming language for frontend development elm
Web and UI Focused
Compiles to JavaScript
No runtime exceptions in practice.
The 2nd argument to function `add` is causing a mismatch.
7| add 2 "3" ^^^ Function `add` is expecting the 2nd argument to be: Int But it is: String Compile time static type checks
Functional
Pure Data in Data out
Pure No side effects
Pure Predictable and Testable!
Immutable Data • Safety and consistency • Explicit flow of
data • No subtle mutation bugs
No undefined is not a function
Fast
One framework. No fatigue. Update View Model Messages
model Update View
model Update View VDOM
model Update View
model Update View
model Update View
model Update View
model Update View
model Update View VDOM
✓ Easier to write code ✓ Easier to write tests
✓ Easier to refactor
Demo
Getting Started • elm-lang.org • elm-lang.org/examples • guide.elm-lang.org • www.elm-tutorial.org
• builtwithelm.co • Slack • elmlang.herokuapp.com
Programming Elm: Build Safe and Maintainable Front-End Applications Follow @elpapapollo
for future updates
Thanks! Jeremy Fairbank @elpapapollo / jfairbank Slides: bit.ly/elm-atl-js Demo: bit.ly/elm-atl-js-demo