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
Reactivity Transform
Search
kazupon
August 17, 2022
Technology
1
1.4k
Reactivity Transform
kazupon
August 17, 2022
Tweet
Share
More Decks by kazupon
See All by kazupon
わたしのOSS活動
kazupon
3
520
Vapor Revolution
kazupon
3
3.6k
Vue.js最新動向
kazupon
3
1.6k
Vue 3.4
kazupon
13
4.7k
Vue & Vite Rustify
kazupon
4
2.3k
Vue.jsエコシステム動向2023
kazupon
17
7.9k
わたしのOSS活動
kazupon
1
1k
Vue with Vite
kazupon
2
2.6k
State of Vue I18n
kazupon
3
640
Other Decks in Technology
See All in Technology
Automating Web Accessibility Testing with AI Agents
maminami373
0
1.3k
企業の生成AIガバナンスにおけるエージェントとセキュリティ
lycorptech_jp
PRO
2
190
AIエージェント開発用SDKとローカルLLMをLINE Botと組み合わせてみた / LINEを使ったLT大会 #14
you
PRO
0
130
LLMを搭載したプロダクトの品質保証の模索と学び
qa
0
1.1k
AI時代を生き抜くエンジニアキャリアの築き方 (AI-Native 時代、エンジニアという道は 「最大の挑戦の場」となる) / Building an Engineering Career to Thrive in the Age of AI (In the AI-Native Era, the Path of Engineering Becomes the Ultimate Arena of Challenge)
jeongjaesoon
0
240
要件定義・デザインフェーズでもAIを活用して、コミュニケーションの密度を高める
kazukihayase
0
120
slog.Handlerのよくある実装ミス
sakiengineer
4
450
開発者を支える Internal Developer Portal のイマとコレカラ / To-day and To-morrow of Internal Developer Portals: Supporting Developers
aoto
PRO
1
470
サラリーマンの小遣いで作るtoCサービス - Cloudflare Workersでスケールする開発戦略
shinaps
2
470
初めてAWSを使うときのセキュリティ覚書〜初心者支部編〜
cmusudakeisuke
1
280
IoT x エッジAI - リアルタイ ムAI活用のPoCを今すぐ始め る方法 -
niizawat
0
110
「どこから読む?」コードとカルチャーに最速で馴染むための実践ガイド
zozotech
PRO
0
550
Featured
See All Featured
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
GitHub's CSS Performance
jonrohan
1032
460k
The Cost Of JavaScript in 2023
addyosmani
53
8.9k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
8
530
How STYLIGHT went responsive
nonsquared
100
5.8k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.1k
The World Runs on Bad Software
bkeepers
PRO
70
11k
Optimising Largest Contentful Paint
csswizardry
37
3.4k
Reflections from 52 weeks, 52 projects
jeffersonlam
352
21k
A designer walks into a library…
pauljervisheath
207
24k
StorybookのUI Testing Handbookを読んだ
zakiyama
31
6.1k
Transcript
Reactivity Transform TechFeed Experts Night #2 2022.08.17 @kazupon
PLAID, inc. Vue.js Core Team Member Vue.js Japan User Group
Organizer Creator of Vue I18n & Intlify @kazu_pon kazupon kazupon
Vue Fes Japan Online 2022
ࠓ͢͜ͱ • Reactivity Transform ʹ͍ͭͯ • ·࣮ͩݧతػೳͳͷͰࠓޙมΘΔ Մೳੑ͕͋Δ͔
Reactivity Transform
Reactivity Transform ͱ? • ίϯύΠϥϚΫϩΛͬͯ Composition API ͷϦΞΫςΟϒ पΓͷΛղܾ͢ΔͨΊͷͷ •
Ґஔ͚ͮͱͯ͠ Composition API ͷ DX Λվળ͢ΔͨΊʹੜ·Εͨ
ఏڙ͞ΕΔίϯύΠϥϚΫϩ • `$` ͰϓϦϑΟοΫε͞ΕͨίϯύΠϥϚΫϩ܊ • $ref() • $computed() • $shallowRef()
• $customRef() • $toRef() • $() • $$()
ఏڙ͞ΕΔίϯύΠϥϚΫϩ • `$` ͰϓϦϑΟοΫε͞ΕͨίϯύΠϥϚΫϩ܊ • $ref() • $computed() • $shallowRef()
• $customRef() • $toRef() • $() • $$() Composition API ͷ ϦΞΫςΟϏςΟؔ࿈APIʹ ରԠ͢ΔϚΫϩ
ఏڙ͞ΕΔίϯύΠϥϚΫϩ • `$` ͰϓϦϑΟοΫε͞ΕͨίϯύΠϥϚΫϩ܊ • $ref() • $computed() • $shallowRef()
• $customRef() • $toRef() • $() • $$() Composition API ͷ ϦΞΫςΟϏςΟؔ࿈APIʹ ରԠ͢ΔϚΫϩ ϦΞΫςΟϏςΟपΓͷৼΔ͍ ΛऔΓѻ͏ϚΫϩ
ٕज़తʹͲ͏ͳͬͯΔʁ • Babel ΛͬͯϚΫϩͰॻ͔Εͨ VueͷίʔυΛ AST Λղੳͯ͠ɺ ಈ͘JSίʔυʹม͍ͯ͠Δ • `@vue/reactivity-transform`
ͱ͍͏ ύοέʔδͰॲཧ͞ΕΔ
ϦΞΫςΟϏςΟ पΓͷͱʁ
ref ͱ reactive ͷ औΓѻ͍͕͍͠
reactive ͱ ref ͷऔΓѻ͍͕͍͠ • reactive: • ΦϒδΣΫτσʔ λߏ •
number string ͳͲͷϓϦϛςΟ ϒͳॲཧͰ͖ ͳ͍
reactive ͱ ref ͷऔΓѻ͍͕͍͠ • ref: • ϓϦϛςΟϒͳ Λѻ͍Մೳ •
ΦϒδΣΫτՄ ೳ • `.value` ͰΞΫηε ͠ͳ͍ͱ͍͚ͳ͍
ΛׂೖͰऔ Γѻ͏ͷ͕͍͠
ΛׂೖͰऔΓѻ͏ͷ͕͍͠
ΛׂೖͰऔΓѻ͏ͷ͕͍͠
Props ͷσϑΥϧτ ఆٛํ๏
Props ͷσϑΥϧτఆٛํ๏
Reactivity Transform Λ͏ͱ…
ref ͱ reactive ͷ औΓѻ͍͕͍͠ ͱ͍͏ʹରͯ͠…
ref ܥΛ͍͍͑Α͏ʹͳΔ ίϯύΠϧલ ίϯύΠϧޙ e.g. `$ref` Λͬͨέʔε
ΛׂೖͰऔ Γѻ͏ͷ͕͍͠ ͱ͍͏ʹରͯ͠…
ׂೖ͕ؾܰʹ͑ΔΑ͏ʹͳΔ ίϯύΠϧલ ίϯύΠϧޙ
ׂೖ͕ؾܰʹ͑ΔΑ͏ʹͳΔ ίϯύΠϧલ ίϯύΠϧޙ
Props ͷσϑΥϧτ ఆٛํ๏ ͱ͍͏ʹରͯ͠…
Props ͷσϑΥϧτJSߏจͰఆٛՄೳ ίϯύΠϧલ ίϯύΠϧޙ
Reactivity Transform ͷҙ
ϦΞΫςΟϒͳมͷఆٛ
ϚΫϩͰఆٛͨ͠มΛؔʹ͢ͱ͖ ref ͷҾΛ࣋ͭؔʹɺ ϚΫϩͰఆٛͨ͠ม ͢ͱಈ࡞͠ͳ͍… (TSڥͷ߹ܕΤϥʔ) `$$()` Ͱϥοϓ(Τεέʔϓ)ͯ͋͛͠Ε ίϯύΠϧ࣌ʹ ref
ͷ··͞ΕΔ
ؔͰϚΫϩͰఆٛͨ͠มΛฦ͢ͱ͖
αϙʔτ͢Δ πʔϧ
ެࣜͰఏڙ͢Δπʔϧ • VS Code ֦ு • Volar • ESLint ϓϥάΠϯ
• eslint-plugin-vue (ϧʔϧఏڙ༧ఆ) • όϯυϥ͚ϓϥάΠϯɾϩʔμʔ • Vite: `@vitejs/plugin-vue@^2.0.0` • Webpack: `vue-loader@^17.0.0`
·ͱΊ
·ͱΊ • Reactivity Transform ϦΞΫςΟϏςΟप ΓͷΛղܾ͢ΔͨΊͷͷ • ίϯύΠϥϚΫϩΛ͏͜ͱͰΛղܾ͢ Δ͜ͱ͕Ͱ͖Δ •
෭࡞༻͋ΔͷͰ͏ͱ͖ҙ͕ඞཁ • αϙʔτ͢Δπʔϧ͕ఏڙ͞ΕΔͷͰ͍ͬ ͠ΐʹ͏ͱ DX ΛߴΊΒΕΔ
Thanks!