redux

想写好前端,先练好内功

孤者浪人 提交于 2020-12-12 00:42:10
源自: https://www.yuque.com/es2049/blog/al62bl 前言 封不平听在耳里,暗叫:“到这地步,我再能隐藏甚么?”仰天一声清啸,斜行而前,长剑横削直击,迅捷无比,未到五六招,剑势中已发出隐隐风声。他出剑越来越快,风声也是渐响,剑锋上所发出的一股劲气渐渐扩展,旁观众人只觉寒气逼人,脸上、手上被疾风刮得隐隐生疼,不由自主的后退,围在相斗两人身周的圈子渐渐扩大,竟有四五丈方圆。泰山派的一个道士在旁说道:“气宗的徒儿剑法高,剑宗的师叔内力强,这到底怎么搞的?华山派的气宗、剑宗,这可不是颠倒来玩了么? 《笑傲江湖》中的“剑宗余孽”封不平本想仗着有嵩山派撑腰,一举夺了华山掌门宝座。可打了半天剑法上占不了便宜,最后只能使出“狂风快剑”,企图以内力取胜。可见,任何高明武功若无内功心法相辅,也是徒劳无功。 说回前端,如今的前端技术栈就如同武侠小说中的江湖一样,各门各派自成一体,可谓“百花齐放”、“百家争鸣”。 这边 React 、Vue 、AngularJS 、JQuery 谁还都谈不上能一统江湖。“武林新贵” Flux 、Redux 、Mobx 们已经忙着争夺谁是数据流框架老大。Native 端 RN 刚偃旗息鼓,Weex 就大有“ I’m the everywhere ”之势。连备受争议的 GraphQL 内部都还有 Apollo、Relay 掐来掐去。

React-redux useDispatch() Uncaught TypeError

一世执手 提交于 2020-12-11 17:52:05
问题 I'm trying to create a simple component to dispatch an action using the React Redux hook useDispatch - and I'm getting an error. I've trimmed the component down to where the error occurs. It happens when the useDispatch function is called. import { useDispatch } from 'react-redux' const MyComp = () => { useDispatch() return null } export default MyComp This is the error I'm seeing in dev console: Uncaught TypeError: Object(...) is not a function at MyComp (MyComp.js?cc4c:4) at renderWithHooks

React-redux useDispatch() Uncaught TypeError

自古美人都是妖i 提交于 2020-12-11 17:46:33
问题 I'm trying to create a simple component to dispatch an action using the React Redux hook useDispatch - and I'm getting an error. I've trimmed the component down to where the error occurs. It happens when the useDispatch function is called. import { useDispatch } from 'react-redux' const MyComp = () => { useDispatch() return null } export default MyComp This is the error I'm seeing in dev console: Uncaught TypeError: Object(...) is not a function at MyComp (MyComp.js?cc4c:4) at renderWithHooks

Using React forwardRef with Redux connect

寵の児 提交于 2020-12-08 08:08:09
问题 I have a React functional component that is using forwardRef like this: const wrapper = React.forwardRef((props, ref) => ( <MyComponent {...props} innerRef={ref} /> )); export default wrapper; Now I want to pass some state to this component using mapStateToProps with Redux's connect function like this: export default connect(mapStateToProps, null)(MyComponent); I tried to combine them in the following way but it didn't work: const wrapper = React.forwardRef((props, ref) => ( <MyComponent {..

Using React forwardRef with Redux connect

主宰稳场 提交于 2020-12-08 08:07:21
问题 I have a React functional component that is using forwardRef like this: const wrapper = React.forwardRef((props, ref) => ( <MyComponent {...props} innerRef={ref} /> )); export default wrapper; Now I want to pass some state to this component using mapStateToProps with Redux's connect function like this: export default connect(mapStateToProps, null)(MyComponent); I tried to combine them in the following way but it didn't work: const wrapper = React.forwardRef((props, ref) => ( <MyComponent {..

Is connect() in leaf-like components a sign of anti-pattern in react+redux?

旧巷老猫 提交于 2020-12-08 08:03:35
问题 Currently working on a react + redux project. I'm also using normalizr to handle the data structure and reselect to gather the right data for the app components. All seems to be working well. I find myself in a situation where a leaf-like component needs data from the store, and thus I need to connect() the component to implement it. As a simplified example, imagine the app is a book editing system with multiple users gathering feedback. Book Chapters Chapter Comments Comments Comments At

Is connect() in leaf-like components a sign of anti-pattern in react+redux?

半世苍凉 提交于 2020-12-08 08:03:04
问题 Currently working on a react + redux project. I'm also using normalizr to handle the data structure and reselect to gather the right data for the app components. All seems to be working well. I find myself in a situation where a leaf-like component needs data from the store, and thus I need to connect() the component to implement it. As a simplified example, imagine the app is a book editing system with multiple users gathering feedback. Book Chapters Chapter Comments Comments Comments At

Is connect() in leaf-like components a sign of anti-pattern in react+redux?

為{幸葍}努か 提交于 2020-12-08 08:02:27
问题 Currently working on a react + redux project. I'm also using normalizr to handle the data structure and reselect to gather the right data for the app components. All seems to be working well. I find myself in a situation where a leaf-like component needs data from the store, and thus I need to connect() the component to implement it. As a simplified example, imagine the app is a book editing system with multiple users gathering feedback. Book Chapters Chapter Comments Comments Comments At

How to reset filter values in react admin framework?

≡放荡痞女 提交于 2020-12-08 06:52:06
问题 I have a filter component: export const PostsFilter = (props) => ( <Filter {...props}> <TextInput label='Post ID' source='id' alwaysOn /> <TextInput label='User ID' source='user_id' alwaysOn /> </Filter> ); I need to add a reset button that will clear input values. I understand that in should be done via dispatching smth to redux. So maybe somebody already solved this problem? Thanks! 回答1: There is a setFilters prop in your filter component, you can use it: export const PostsFilter = (props)

React TypeScript get Data Attribute From Click Event

ぃ、小莉子 提交于 2020-12-08 06:15:41
问题 So I have a React component with a button which has a click handler which uses the data-* attribute. If this was straight React then I know how to get the value from the data-* attribute. However I am learning how to use TypeScript so I have no idea how to get access to this attribute. So what is the best way to get access to the data-* attribute using TypeScript? This is my JSX code for the button: <button type="button" className="NavLink" data-appMode={ AppMode.MAIN } onClick={ this