首页 / REACT / [React + Functional Programming ADT] Create Redux Middleware to Dispatch Multiple Actions
[React + Functional Programming ADT] Create Redux Middleware to Dispatch Multiple Actions
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了[React + Functional Programming ADT] Create Redux Middleware to Dispatch Multiple Actions,小编现在分享给大家,供广大互联网技能从业者学习和参考。文章包含1585字,纯文字阅读大概需要3分钟。
内容图文
We only have a few dispatching functions that need to be known by our React Application. Each one actually has multiple actions that need to be dispatched. While we could just have many imperative calls to dispatch in our dispatching functions, but why not use it as an excuse to use an array and write some middleware.
We will create a middleware function that will check dispatched actions to see if they are arrays. If a given action is an array we loop over the array, dispatching each action in turn. If it is not however, we just pass it along to be handled downstream.
Create a middle which can take dispatch fns as array type:
function multiMiddleware({ dispatch }) { return next => action => { return isSameType(Array, action) ? action.forEach(a => dispatch(a)) : next(action); }; }
Apply the middle:
import { createStore, compose, applyMiddleware } from"redux"; function multiMiddleware({ dispatch }) { return next => action => { return isSameType(Array, action) ? action.forEach(a => dispatch(a)) : next(action); }; } const middleware = applyMiddleware(multiMiddleware); const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose; export default createStore( reducer, initialState(), composeEnhancers(middleware) );
Previously, we can only apply one dispatch fn:
start: () => dispatch(startGame())
Now we can dispatch multi actions:
start: () => dispatch([startGame(), hideAllCards()])
原文:https://www.cnblogs.com/Answer1215/p/10363068.html
内容总结
以上是互联网集市为您收集整理的[React + Functional Programming ADT] Create Redux Middleware to Dispatch Multiple Actions全部内容,希望文章能够帮你解决[React + Functional Programming ADT] Create Redux Middleware to Dispatch Multiple Actions所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错,欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 gblab@vip.qq.com 举报,一经查实,本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。