Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
Web Components のリアル/ Realistic Web Components
Search
aggre
November 25, 2018
Technology
8.6k
12
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
Web Components のリアル/ Realistic Web Components
HTML5 Conference 2018 (
https://events.html5j.org/conference/2018/11/
)での資料です
aggre
November 25, 2018
More Decks by aggre
See All by aggre
The money for the openable and shareable era
aggre
0
550
エンジニアは会社に何を求めるか? / What does engineers wants the company?
aggre
0
180
The importance ofopen assets
aggre
0
120
Fully AMP pros and cons
aggre
0
260
OSS の持続的開発をトークンエコノミーで支援する / Dev Token @OSS Universe
aggre
1
430
OSS の持続的開発をトークンエコノミーで支援する / Dev Token @CryptoBowl
aggre
1
520
Mastering lit-html directive
aggre
0
490
非中央集権ウェブ / Decentralized Web
aggre
3
650
OSS の持続的開発をトークンエコノミーで支援する / Dev Token
aggre
0
570
Other Decks in Technology
See All in Technology
触りたくないデータに、どう触るか AI時代のRBACアクセスガバナンス
ivry_presentationmaterials
0
260
初海外で注意すべきこと12選!!!安全快適なre:invent生活にするために
yuuuuuuu168
1
160
エンタメ企業のM&Aを支えるデータ基盤 ― 統合から店舗のリアルタイム分析まで / Data Engineering Summit 2026
genda
0
180
1つのリクエストを追って理解する - llm-dのP/D分離
akhino
1
160
古い指輪から広がった JAVA コミュニティ とのつながり
yamad
0
110
Gemini Intelligence 入門 ― AppFunctions と Gemini Nano
takuroabe
0
260
パスキーの自動テストはどこまでいけるのか
teamlab
PRO
0
250
Rust で関数型ドメインモデリング
takonda
0
140
分析AIエージェントを育てる、動く環境を育てる
codatum
1
1.1k
JAWSUG TOHOKU 青森支部 「LoGoチャット」のAWS移行で 乗り越えたこと
taketakekaho
0
330
その Valkey 使いこなしていますか?
onk
PRO
5
1.5k
WasmをRustにする
sansantech
PRO
0
250
Featured
See All Featured
Agile that works and the tools we love
rasmusluckow
331
22k
Rails Girls Zürich Keynote
gr2m
96
14k
BBQ
matthewcrist
90
10k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
230
23k
Lightning Talk: Beautiful Slides for Beginners
inesmontani
PRO
2
730
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
33
5.2k
The innovator’s Mindset - Leading Through an Era of Exponential Change - McGill University 2025
jdejongh
PRO
1
380
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.9k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
508
140k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
35
2.9k
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
kimpetersen
PRO
0
500
Building an army of robots
kneath
307
47k
Transcript
Web Components HTML5 Conference 2018 @2018-11-25
aggre @aggre_ @aggre FRAME00, INC. CTO aggre.io
• Web Components (5min) • Web Components (5min) • Web
Components (10min) • Web Components (20min)
Web Components
Custom Elements Shadow DOM HTML Templates ES Modules
Custom Elements Shadow DOM HTML Templates ES Modules / Production-ready
Custom Elements Shadow DOM HTML Templates ES Modules Edge Developing
‼
IE
IE • Windows 10 Edge • Windows 7 2020 1
• Windows 8.1 ? Edge … App
None
Polyfills IE, Edge
Polyfills IE, Edge Shadow DOM
• / Polyfills OK • Edge , IE 2020 Polyfills
Web Components
• Custom Elements • Shadow DOM • HTML Templates •
HTML Imports
• Custom Elements • Shadow DOM • ES Modules
• Custom Elements • Shadow DOM • HTML Templates •
HTML Imports • Custom Elements • Shadow DOM • ES Modules
None
HTML
HTML
Custom Elements
Custom Elements
None
Custom Elements Shadow DOM ES Modules
Custom Elements Shadow DOM ES Modules Custom Elements Shadow DOM
DOM
Custom Elements
None
None
DOM createElement()
DOM createElement()
None
None
None
destroy
observedAttributes DOM
observedAttributes DOM
iframe adoptNode() ownerDocument
iframe adoptNode() ownerDocument
Shadow DOM
DOM
CSS
Shadow DOM
None
Shadow DOM
<slot>
<slot> Shadow DOM slot slot
None
slot
None
Shadow DOM slot
• Custom Elements • • Shadow DOM DOM • slot
Shadow DOM
Web Components
• • • • SSR • more…
Web Components
None
size=large
Web Components
e.g. <iron-autogrow-textarea>
e.g. <pinch-zoom>
Web Components xxx-dnd … <drag-and-drop>
None
Web Components
e.g. React
e.g. React Shadow DOM React render
• Web Components • React, Angular, Vue… • • •
:
SSR Shadow DOM slot Hydrate SSR
HTML
shadowRoot <slot> render shadowRoot
shadowRoot <slot> render shadowRoot slot
shadowRoot <slot> render shadowRoot Hydrate
shadowRoot <slot> render shadowRoot SSR
• Custom Elements • Shadow DOM, slot • •
Web Components
…
None
Web Components
• • lit-html • Web Components • lit-html Web Components
• lit-element • Angular/Vue
• lit-html • lit-html Web Components • lit-element • Angular/Vue
• lit-html • lit-html Web Components • lit-element • Angular/Vue
Web Components
• lit-html • lit-html Web Components • lit-element • Angular/Vue
FW FW Web Components
• lit-html • lit-html Web Components • lit-element • Angular/Vue
( )
None
• • innerHTML addEventListener DOM API •
lit-html ( lit-html )
None
lit-html
lit-html
lit-html html, render directive 3 API
lit-html Tagged Templates
lit-html HTML
lit-html HTML DOM DOM
lit-html DOM
lit-html textContent <p>
@Event
?attribute
.property DOM
Intellisense for lit-html typescript-lit-html-plugin, vscode-lit-html
lit-html • lit-html • Intellisense • Web Components • …
• lit-html • lit-element
lit-element
None
None
lit-html React.Component
lit-element • TypeScript Native • lit-html • Web Components •
@property({type: X}) • • lit-html .property
lit-html
None
None
lit-html
None
<header>
<nav>
<article>
<footer>
JSX lit-html
RxJS
fit-html Redux + lit-html
Directive API
Directive API 1
Directive API 0 -1
Directive API directive
Directive API
Directive API render
lit-html • TypeScript Native • JSX • Directive API •
• Vue/Angular HTML React
appendix
lit-html, hyperHTML, htm Tagged Templates
lit-html
hyperHTML
hyperHTML bind() DOM
hyperHTML wire()
htm
htm htm ( preact )
htm JSX
htm …
lit-html hyperHTML htm • (HTML Template Instantiation) • PolymerLabs/template-instantiation •
Directive API • ES5 • Node.js • Tagged Templates JSX • preact vhtml developit/ WebReflection/ Polymer/
( TypeScript Native lit-html )
• lit-element Web Components • FP lit-html ( )
• / Polyfills OK • Edge , IE 2020 Polyfills
• Custom Elements • Shadow DOM DOM • slot Shadow DOM • • • lit-element Web Components • FP lit-html
Thank you! @aggre_ @aggre aggre.io