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リアクティブシステムの変遷から理解するalien-signals / Learning ali...
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Okuto Oyama
March 28, 2025
Programming
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1.2k
リアクティブシステムの変遷から理解するalien-signals / Learning alien-signals from the evolution of reactive systems
Vue.js v-tokyo Meetup #22
発表資料
詳細は
Webフロントエンドでのリアクティビティからalien-signalsを知ろう
をご覧ください。
Okuto Oyama
March 28, 2025
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Transcript
リアクティブシステムの 変遷から理解する alien-signals 2025/03/28 - Vue.js v-tokyo Meetup #22
• 株式会社Schoo ◦ Front-end Engineer • PodCast User ◦ お元気ですか
.fm • @yamanoku ◦ X ◦ GitHub ◦ BlueSky 大山奥人 おおやま おくと
Webフロントエンドでのリアクティビティから alien-signalsを知ろう
• Understanding Reactivity System • Learning about alien-signals • To
help you understand the next presentations This Session’s Goal
Reactivity?
はんのうせい 「反応性」
Input State Update !!!!! Reactivity !!!!!
Model View Controller
Reactivity Programing
None
Subject Observer Observer Pattern notify update
Publisher Event Broker Pub-Sub Subscriber notify subscribe publish
Push, Pull, Push-Pull
Push State Components UPDATE!
Pull State Components UPDATE!
Push-Pull State Components Dirty Flag State Components UPDATE!
Web Front-end Reactivity Programing History
None
Signals “ Signals ”
• State / Writable Signals • Getter • Setter •
Computed / Derived Signals • Effects / Watchers Signals Interfaces
used Signals like Interface !
None
• Created by Johnson Chu • Push-Pull type • Signals
Interface API • Used Vue 3.6 & Vue language tooling ◦ Make Vue.js reactivity system better alien-signals The lightest signal library !!
Benchmark comparing different standalone JS reactivity / signals frameworks. 2025/01
Derived Projects
TC39 Signals Proposal
• Reactivity is key in modern front-end frameworks • Trend
towards using a pattern called “Signals” • “alien-signals” is a lightweight library • Move to standardize Signals in TC39 Conclusion This Session !
Thank you for listening ! 2025/03/28 - Vue.js v-tokyo Meetup
#22