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    --- title: Redux tags: Front-end, Redux, 學習筆記 --- # Redux ## 查無此人的概論 ``` 404 Not Found ``` ### Flux 因為作者說了,這玩意是從Flux的概念來的,所以先提一下Flux。 故事(?)要從React的state跟props開始說起。在React中,```props``` 為從父元件傳遞下來的屬性值,子元件沒有更動權利;```state``` 為元件自己的屬性值,可以透過setState更改。 這會造成一個問題,當專案越大的時候,可能很多地方都會用到同樣的資料,但當一個元件去更動資料時,不是每個元件都會知道。 所以有人提供一個解決方案,單向資料流。 ![](https://i.imgur.com/2mxP3Bv.png) > 圖片來源:[Flux 筆記 « AndyYou's Blog](http://andyyou.logdown.com/posts/241839-flux-notes) > 元件要對資料進行更動時,會觸發action,然後經由這個路徑一層一層把更新的資料發布出去,讓所有用到這個資料的元件都知道,如此便比較容易知道。 好感人喔。 因為Flux不是重點,所以就跳過Flux的名詞解釋了,自己去看。 > 參考資料:[【Day17】 從哪來到哪去 - Data Flow - iT 邦幫忙::一起幫忙解決難題,拯救 IT 人的一天](https://ithelp.ithome.com.tw/articles/10196024) ### Redux咧?(敲碗 承上文,Redux參考了Flux提出的資料流概念, ![](https://i.imgur.com/S8RcJYJ.png) - Actions Creator - Reducer - Store ## 配置 ```- npm install redux ``` ```javascript= ``` ## 爆炸的資料來源 - [Redux](https://chentsulin.github.io/redux/index.html) - [一些自己寫 React 的好習慣- lifecycle method 跟 state 管理 – 陳冠霖 – Medium](https://medium.com/@as790726/%E4%B8%80%E4%BA%9B%E8%87%AA%E5%B7%B1%E5%AF%AB-react-%E7%9A%84%E5%A5%BD%E7%BF%92%E6%85%A3-lifecycle-method-%E8%B7%9F-state-%E7%AE%A1%E7%90%86-b37a12da968b) - [Flux 筆記 « AndyYou's Blog](http://andyyou.logdown.com/posts/241839-flux-notes) - [【Day15 React】React Flux 架構介紹 ](https://ithelp.ithome.com.tw/articles/10192712)

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