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Flux/Reduxって何?雑に作ってみよう / easy creation of flux
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erukiti
May 26, 2017
Programming
1.2k
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Flux/Reduxって何?雑に作ってみよう / easy creation of flux
第1回 React.js 導入事例の発表資料です。
Flux/Reduxとは何かという説明と、実際にFluxを作ってみようというものです。
erukiti
May 26, 2017
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Transcript
Flux/ReduxͬͯԿʁ ࡶʹ࡞ͬͯΈΑ͏ erukiti
erukiti (͑Δ͖ͪ) • ES2016େ͖ (ES5ҎલΨϯແࢹελΠϧ) • ͍ͨͩ·ٳཆத • Switchങ͍·ͨ͠ (θϧμ125࣌ؒҎ্ɺϚϦ
ΦΧʔτ15࣌ؒҎ্ϓϨΠ)
ٕज़ॻయ2Ͱຊͩ͠·ͨ͠ • ٕज़ॻయ2࠷ߴͰͨ͠ɻ • Impress R&D͞·ͰۀԽ ͷ࡞ۀ͕ਐߦதͰ͢ɻ ͷਐḿχϟΦεͰ͢ɻ https://tk-rabbit-house.booth.pm/items/489874
ࠓͷ༰ • Reactʹ͖ͷͷFlux/ReduxͱԿ͔ • FluxΛ؆୯ʹ࡞Δ
FluxReduxͬͯԿʁ
FluxσβΠϯύλʔϯ • σʔλϑϩʔΛҰํ௨ߦʹ͢Δͱ͍͏σβΠ ϯύλʔϯ • Facebook͕ࣾಉ໊͡લͷϥΠϒϥϦ࡞ͬͯΔ • ObserverύλʔϯͱCommandύλʔϯͷ Έ߹Θͤ ฆΒΘ͍͠
͜ΜͳਤΛݟͨ͜ͱ͋Γ·͔͢ʁ Action Dispatcher Store View Action
ActionΛ͛Δ(dispatch͢Δ)
ঢ়ଶཧStoreͷ͠͝ͱ • StoreΞϓϦͷঢ়ଶ(State)Λ࣋ͭ • ͛ΒΕͨActionΛreducerͰঢ়ଶΛߋ৽ • ߋ৽ͨ͠ΒViewʹ௨Λඈ͢
Viewγϯϓϧʹ • Store͔Βͷߋ৽௨Ͱඳը (Observer) • Ϣʔβʔ͔ΒͷೖྗActionΛdispatch͢Δ • ࣮ViewReactҎ֎ͰOK
͓͞Β͍ Action Dispatcher Store View Action
Կ͕͏Ε͍͠ͷʁ • σʔλͷྲྀΕ͕୯७Խ͢Δ • Λ໌֬ʹ͚ΒΕΔ (༨͕͋Δ) • ͦΕΒʹΑͬͯૄ݁߹ʹͰ͖Δ
Redux? Action Store View Action
ReduxͱFluxͷҧ͍ • FluxͰDispatcherγϯάϧτϯͰStore ෳ࣋ͯΔ • ͦΕͳΒStoreΛγϯάϧτϯʹ͢Ε Dispatcher͍Βͳ͍ࢠͳͷͰʁ • ͱ͍͏ׂΓΓΛ࣮͕ͨ͠Redux
FluxΛ࡞ͬͯΈΔ
ϕʔεͱͳΔReact Component
None
Storeͷׂ • ঢ়ଶͷอ࣋ͱมߋ • มߋͨ͠Β௨Λඈ͢
None
reducerϏδωεϩδοΫ • reducerActionΛݩʹStateΛมߋ͢Δํ๏ ͚ͩΛهͨ͠ͷ • stateʹॳظΛೖΕͯΔͷReduxͷΓํ
React ComponentΛมߋ͢Δ
·ͩsetState͕ͬͯΔ݅ • Store࡞ͬͯdispatch࣮͚ͨ͠Ͳɺ·ͩ setState͕ͬͯ͠·͍ͬͯΔɻ • Ͳ͏ͤFluxಋೖ͢ΔΜ͔ͩΒprops͚͍ͩͨ ͍ • Ͳ͏͢ΕpropsΛߋ৽(?)Ͱ͖Δͷ͔ʁ
propsΛߋ৽(?)͢Δํ๏ 1. react-domͷrenderΛ໌ࣔతʹୟ͘ 2. ରͷComponentΛߋ৽͢ΔͨΊͷϥο ύʔΛ࡞Δ (react-reduxํࣜ) ΄͔ʹΓํ͋Δ͔ʁ
None
None
Θʔ͍ɺͨʔͷ͠ʔ
՝ • ࡶʹ࡞ͬͨͭͳͷͰɺ͋ͱͪΐͬͱΈ ΛՃ͑ͳ͍ͱϥΠϒϥϦԽͰ͖ͳ͍ɻ • ReduxͰͦ͏͚ͩͲɺඇಉظॲཧΛͲ͜ʹ ஔ͘ͷʁ
·ͱΊ • Modern JavaScript ͍ͨͩ·boothͰൃചதͰ ͢ɻۀ൛͕ਐߦதͰ͢ɻ • FluxΞϓϦΛγϯϓϧʹ͢ΔͨΊͷσβΠϯ ύλʔϯ (ͳͷͰɺReactҎ֎ʹ͑Δ)
• Flux؆୯ʹ࡞ΕΔ https://tk-rabbit-house.booth.pm/items/489874
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ