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
Introduction to Redux
Search
Kohei Asai
September 08, 2015
Programming
22k
34
Share
Introduction to Redux
I talked about Redux(
https://github.com/rackt/redux
) on React.js meetup #2, 8 Sep 2015.
Kohei Asai
September 08, 2015
More Decks by Kohei Asai
See All by Kohei Asai
The State Transparented Web Application
axross
1
310
UIコンポーネント指向と「協働」
axross
6
2.8k
安全なJavaScriptを書く
axross
22
8.6k
作るのにデザイナーもエンジニアもない
axross
14
7.3k
なぜprottか
axross
4
2.7k
コンポーネント指向による、Reactのベストプラクティスとバッドプラクティス
axross
0
450
Nodeとフロントエンド − 知っておかなければならない、今と未来の話 −
axross
2
1.4k
gulpを使うと彼女ができるよ - かんたんな紹介とハンズオン
axross
2
1.1k
Other Decks in Programming
See All in Programming
柔軟なPDFレイアウトエディタを支える型システム設計 — Discriminated UnionとConditional Typeの実践
minako__ph
1
110
Skillは並べた。動かなかった。契約で繋いだ。— 65個のSkillから、自走する開発サイクルへ
junholee
0
620
ReactとSvelteのその先、Ripple-TS / Beyond React and Svelte: Ripple-TS
ssssota
0
180
Sans tests, vos agents ne sont pas fiables
nabondance
0
130
新規プロダクトを高速で生み出すハーネスエンジニアリング
seanchas116
3
160
サプライチェーン攻撃対策「層を重ねて落ちない壁」を10日間で組み上げた話 #TechLeadConf2026
kashewnuts
1
290
サークル参加から学ぶ、小さな事業の回し方
yuzneri
0
200
Agentic UI in the Frontend: Architectures with Open Standards @JAX 2026 in Mainz
manfredsteyer
PRO
0
120
UaaL×Androidアプリのメモリ計測 — Memory Profilerの先へ
rio432
0
160
Agentic AI & UI: Arcitecture, HITL, Emerging Standards
manfredsteyer
PRO
0
110
ハーネスエンジニアリングとは?
kinopeee
13
7.1k
Cloudflare で始める Data Platform
ta93abe
0
180
Featured
See All Featured
How Software Deployment tools have changed in the past 20 years
geshan
0
33k
Fireside Chat
paigeccino
42
3.9k
Agile that works and the tools we love
rasmusluckow
331
21k
Bash Introduction
62gerente
615
210k
Introduction to Domain-Driven Design and Collaborative software design
baasie
1
780
How to Ace a Technical Interview
jacobian
281
24k
From Legacy to Launchpad: Building Startup-Ready Communities
dugsong
0
210
VelocityConf: Rendering Performance Case Studies
addyosmani
333
25k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4.3k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
21
1.5k
Digital Projects Gone Horribly Wrong (And the UX Pros Who Still Save the Day) - Dean Schuster
uxyall
0
1.4k
Statistics for Hackers
jakevdp
799
230k
Transcript
*OUSPEVDUJPOUP 3FEVY !BYSPTT 3FBDUKTNFFUVQPO4FQ
)FMMP ˖ !BYSPTT,PIFJ"TBJ ˖ 8PSLJOHJO(VOPTZ*OD ˖ KBWBTDSJQU OPEFKT SFBDUKT
˖ ؚظء٦ⰻד恟歗ָ铣؝ٝذٝخ ˖ չ厤㼰䎃ך✲⟝砢պ ˖ չ厤ؕٝة٦ؽٖպ ˖ OQNJ4SFBDUSFEVYSFBDUSPVUFSCFNNFS ˖ ״׃ֶֻ격ְ׃תׅ
*EFWFMPQJOH
3FEVY
8IBUJT3FEVY IUUQTXXXOQNKTDPNQBDLBHFSFEVY
8IBUJT3FEVY IUUQTXXXOQNKTDPNQBDLBHFSFEVY +BWB4DSJQU،فٔ؛٦ءّٝךך ✮庠〳腉ז朐䡾؝ٝذش
'BNJMZPG'MVY 3FVY TUBST 'MVNPY TUBST 'MVYYPS TUBST
3Y'MVY TUBST 3FEVY TUBST $PVOUFEPO4FQ
'BNJMZPG'MVY 3FVY TUBST 'MVNPY TUBST 'MVYYPS TUBST
3Y'MVY TUBST 3FEVY TUBST 3FEVY'MVYך⟗ $PVOUFEPO4FQ
)PXEJEZPVLOPX3FEVY IUUQTHJUIVCDPNBDEMJUFVNNPY
)PXEJEZPVLOPX3FEVY IUUQTHJUIVCDPNBDEMJUFVNNPY Wכ剑䖓ךًآٍ٦ٔٔ٦أח זֲկ ➿ח3FEVY⢪גֻկ ֮כوآדؚٖ٦زկ
3FEVYJT ˖ 'MVNNPYך⡲罏ָ䩛佝׃ד颣额 ˖ ְתװ3FEVYךワ鴟⡲׃ג ˖ ر٦ةؿٗ٦כ'MVNNPYח⡂ג ˖ 'MVNNPYדכ؟ه٦ز׃גְזַծ չ朐䡾ך盖椚պחꅾֹ縧ְגְ
.PUJWBUJPO
41"HFUNPSF4UBUFT ˖ +BWB4DSJQUך41"⡲ךָ䔲חזծ Ⳕאֻ実ֿהָ㢳ֻז ˖ ״㢳ֻך朐䡾ך盖椚ָ䗳銲חז
UPP)BSEUPNBOBHJOHTUBUFT ˖ 窫ִ׆㢌⻉ׅ朐䡾盖椚ׅךכꨇ׃ְ ˖ ְ׆䩛ח頾ִזֻז ˖ غؚךⱄ植ָּׅחדֹזֻז ˖ 堣腉鷄⸇ךꥷח䕦갟眔㔲ָ钠陎׃חְֻ
3FBJTHSFBU CVU ˖ 3FBDUד%0.ה朐䡾כⴖꨄׁ ˖ $PNQPOFOUכ⦼ח״ג撑鷲麓ח %0.乼⡲ׅ ˖ ׃ַ׃ծך朐䡾ךչ盖椚պכ䩛➰ַ׆
8FBSFTUJMMPOPOFTXBZ'MVY ˖ չ朐䡾ך盖椚պ'MVYהְֲؿٗ٦ח䔲גכ גծ⬁כ鍑寸׃״ֲה׃ ˖ ׃ַ׃ծתչֿպהְֲךכ⳿גֹג ְזַ ˖ 3FEVYכֿךչ朐䡾ך盖椚պ♧殢ֲתֻדֹ 'MVY
%BUB'MPX
4JOHMF4UBUF5SFF 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4JOHMF4UBUF
4JOHMF4UBUF5SFF 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4JOHMF4UBUF 3FEVYכאך4UBUFךٕ٦ز 呎
ָ֮
4JOHMF4UBUF5SFF 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4JOHMF4UBUF خٔ٦朐ח4UBUFָעָׁג
4JOHMF4UBUF5SFF 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4JOHMF4UBUF ך4UBUFחכ 3FEVDFSָ秡➰ְג
˖ 4UBUFؿ؍ٕة٦وحػ٦ ˖ 3FEVDFSכ ˖ 荈ⴓך4UBUF㢌刿ַׅוֲַ ˖ 4UBUFוֲ刿倜ַׅծ䬐ֲ ˖ 3FEVDFS荈⡤כ4UBUFדכזְ
3FEVDFS
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO UZQFװ⦼ろ0CKFDU鵤ׅ &WFOU
export const addTodo = body => { return { type:
'TODO_ADD', todo: new Todo(body), }; }; -JLFUIJT
export const addTodo = body => { return { type:
'TODO_ADD', todo: new Todo(body), }; }; -JLFUIJT UZQFה⦼鵤ֽׅך⽃秪זꟼ侧
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF 7JFXָEJTQBUDI &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF ׅץגך3FEVDFSָ「ֽ《 &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF 3FEVDFSכ"DUJPOךUZQFזו ח״גؿ؍ٕة &WFOU
const initialState = { items: [] }; export const todo
= (state = initialState, action) { switch (action.type) { case 'TODO_ADD': return { items: state.items.concat(action.todo), }; default: return state; } }; -JLFUIJT
const initialState = { items: [] }; export const todo
= (state = initialState, action) { switch (action.type) { case 'TODO_ADD': return { items: state.items.concat(action.todo), }; default: return state; } }; -JLFUIJT 3FEVDFSծًحإ٦آ「ֽ《הㄎל 䨱⦼ח״גչ刿倜䖓ך⦼պ寸 䒷侧הずׄ撑鵤ׅהչ㢌刿ז׃պ
const initialState = { items: [] }; export const todo
= (state = initialState, action) { switch (action.type) { case 'TODO_ADD': return { items: state.items.concat(action.todo), }; default: return state; } }; -JLFUIJT 4UBUFךⴱ劍朐䡾
const initialState = { items: [] }; export const todo
= (state = initialState, action) { switch (action.type) { case 'TODO_ADD': return { items: state.items.concat(action.todo), }; default: return state; } }; -JLFUIJT "DUJPOؿ؍ٕةؚٔٝ
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF 䗳銲ח䘔ׄג4UBUF刿倜 &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF QSPQBHBUJPO 7JFXכ4UBUF飑铣ׅ &WFOU
%BUB'MPX 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF QSPQBHBUJPO 刿倜ָ⠗䵤ծ歗刿倜 &WFOU
.JEEMFXBSFT
.JEEMFXBSFT ˖ ًحإ٦آ⠗䵤鷿⚥ד何ׂׅ堣腉 ˖ 醱侧涫ꐮ〳 ˖ ؎ً٦آכ/PEFKTך$POOFDUךח鵚ְ
8IFSFBSF.JEEMFXBSFT 7JFX $PNQPOFOU "DUJPO 4UBUF 3FEVDFS 4UBUF 3FEVDFS 4UBUF 3FEVDFS
4JOHMF4UBUF EJTQBUDI XJUI"DUJPO NFTTBHF QSPQBHBUJPO &WFOU .JEEMF XBSFT 3FEVDFSךד何ׂׅ
&YBNQMFTPG.JEEMFXBSFT ˖ הִלֿזֿהָדֹ ˖ 崧גֻًحإ٦آؘؚٗٝ ˖ SFEVYEFWUPPMTהַ ˖ "DUJPOװ3FEVDFSַ$BMMCBDL䱖ꤐׅ ˖
(PPHMF"OBMZUJDTח&WFOU鸐濼ׅFUD
-PHHJOHFBDINFTTBHF export const loggingMessage = store => { return next
=> { return action => { console.group(action.type); console.info(action); next(action); console.groupEnd(action.type); }; }; }; 劤䔲כֲ׳ה知患ח剅ֽֽו˘
export const loggingMessage = store => { return next =>
{ return action => { console.group(action.type); console.info(action); next(action); console.groupEnd(action.type); }; }; }; -PHHJOHFBDINFTTBHF 劤䔲כֲ׳ה知患ח剅ֽֽו˘ 崧גֹًحإ٦آךתתDPOTPMFח
export const loggingMessage = store => { return next =>
{ return action => { console.group(action.type); console.info(action); next(action); console.groupEnd(action.type); }; }; }; -PHHJOHFBDINFTTBHF 劤䔲כֲ׳ה知患ח剅ֽֽו˘ OFYU ׅה如ך.JEEMFXBSF תכ3FEVDFSח崧
"TZODDPOWFSUUPMJLFB4ZOD export const promiseSyncify = store => { return next
=> { return action => { if (!action.promise) return next(action); action.promise .then(value => next({ type: action.type, value })) .catch(err => { console.error(err); next({ type: action.type, value: null }); }); }; }; };
"TZODDPOWFSUUPMJLFB4ZOD export const promiseSyncify = store => { return next
=> { return action => { if (!action.promise) return next(action); action.promise .then(value => next({ type: action.type, value })) .catch(err => { console.error(err); next({ type: action.type, value: null }); }); }; }; }; BDUJPOQSPNJTFָזֽלإٔ٦
"TZODDPOWFSUUPMJLFB4ZOD export const promiseSyncify = store => { return next
=> { return action => { if (!action.promise) return next(action); action.promise .then(value => next({ type: action.type, value })) .catch(err => { console.error(err); next({ type: action.type, value: null }); }); }; }; }; 1SPNJTF鍑寸ׅ
"TZODDPOWFSUUPMJLFB4ZOD export const promiseSyncify = store => { return next
=> { return action => { if (!action.promise) return next(action); action.promise .then(value => next({ type: action.type, value })) .catch(err => { console.error(err); next({ type: action.type, value: null }); }); }; }; }; OFYU׃ג⦼崧ׅ ぐ3FEVDFSכ崧גֻWBMVF ず劍涸חⳢ椚ׅל״ְ
6TJOHJO UIF3FBM8PSME
XJUI3FBD
XJUI ˖ 3FEVY荈⡤כ3FBDUָזֻג⹛ֻ ˖ 3FEVYכך朐䡾؝ٝذشחֺׅזְ ˖ ˑOHSFEVYהַ֮ ˖ 3FBDUהך⢘欽חכSFBDUSFEVYָ⤑ⵃ
SFBDUSFEVY ˖ 3FBDUغ؎ٝر؍ؚٝ䲿⣘ׅ ˖ DPOOFDU ˖ UIJTQSPQT穗歋דծ䭷㹀׃4UBUFװ EJTQBUDI ָ䖤
˖ TVCTDSJCFך荈⹛⻉ ˖ $PNQPOFOUך'MVYꬊ⣛㶷⻉
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT DPOOFDU כ JNQPSU\DPOOFDU^GSPNSFBDUSFEVY ד䖤
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT 4JOHMF4UBUF5SFFךٕ٦زָ ؝٦ٕغحؙד䖤
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT $PNQPOFOUד䗳銲ז4UBUF 䨱⦼ד䭷㹀ׅ
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT 4UBUFכUIJTQSPQT穗歋ד䖤
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT DPOOFDU ׅה荈⹛涸חEJTQBUDI 䖤
export const TodoList = React.createClass({ onAddClick() { this.props.dispatch(/* any action
*/); }, render() { // can access to this.props.todos }, }); export default connect(state => { return { todos: state.todos.items }; }); -JLFUIJT ⴓֽגFYQPSUׅלծ⯋ך$PNQPOFOUכ QSPQTתד׃ַ撑׃גְזְזךד ذأز嚂
XJUI3FBDU3PVUFS
XJUI3FBDU3PVUFS ˖ ⢘欽חכSFBDUSPVUFS!CFUB⟃꣬ ˖ 3PVUFS$PNQPOFOUָ妜׃ְ ˖ 鑫׃ֻ鑧ׅהꞿֻז♳ח؝،ז鑧זךדծ 䗳銲ז䥪鋵⠓ד耀ְגְֻׁ ˖ תכ!BYSPTT@PO5XJUUFSתד
$PODMVTJPO
$PODMVTJPO ˖ 植朐ծ䧮ղךה㣐ֹז䝢כ朐䡾盖椚 ˖ 醱꧟ׁכ♳傻⫘ぢח֮ ˖ 3FBDU'MVYד鍑寸ׁגכְזְ ˖ 朐䡾盖椚חאְגぢֹさֲֶ ˖
3FEVYכչ朐䡾盖椚պחꅾֹ縧ְ'MVY
$PODMVTJPO ˖ 4JOHMF4UBUF5SFF ˖ אך朐䡾خٔ٦ד،فٔ؛٦ءّٝⰋ⡤ ˖ ٌحؙ岣Ⰵ׃ծ⽯䏟חⱄ植ָ〳腉
$PODMVTJPO ˖ %BUB'MPX ˖ "DUJPOכ劤䔲חչךꟼ侧պ ˖ 3FEVDFS⽃秪זؿ؍ٕة٦وحػ٦ ˖ וֿד⦼ָ欰䧭ׁծוך״ֲח崧ג ְךַծ㺁僒ח鴬ֿהָדֹ
$PODMVTJPO ˖ .JEEMFXBSFTָ֮ ˖ ׅץגךًحإ٦آך何ָׂ〳腉 ˖ ؘؚٗٝ ˖ ꬊず劍ず劍Ⳣ椚שֻ䪔ֲ ˖
钠鏾ָ幥דַוֲַך然钠זו
3FEVYJT SFBMMZHSFBU
5IBOLZPVGPS MJTUFOJOH
8FXBOU 'SPOUFOE &OHJOFFST