In this lesson, we are going to learn how to integrate Redux Devtools into our Angular application. Redux Devtools is a live-editing time travel environment for Redux. Devtools boasts a list of awesome features but my two favorite ones are that we ca…

chrome扩展程序里搜索Redux DevTools进行安装 新建store的时候,进行如下配置. import { createStore, applyMiddleware ,compose} from 'redux'; import reducer from './reducer' import thunk from 'redux-thunk' const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ ? wi…

Redux is one of the most popular state-management libraries and although not specific to React, it is widely used with it. This is why the author of Preact has released a package called preact-redux, which is a simple wrapper around the main react-re…

The first things we need to do is create a reducer: /** * CONSTANT * @type {string} */ export const GET_CATEGORIES = "GET_CATEGORIES"; /** * INIT VALUE */ export const initialCategories = [ {id: , name: 'Development'}, {id: , name: 'Design'}, {i…

回顾:Redux: 类似于 Vuex 概念:store/reducer/action action:动作 {type,.....} 一定要有type 其他属性不做限制 reducer:通过计算产生state 公式:(state,action)=>newState store: 容器 getState() 获取所有状态 dispatch(action) dispatch里面可以跟对象和函数, -- 函数需要单独处理--中间件 subscribe(监听函数);-- watch 触发条件: 1.dis…

1: state 就像 model { todos: [{ text: 'Eat food', completed: true }, { text: 'Exercise', completed: false }], visibilityFilter: 'SHOW_COMPLETED' } 2: action, 普通的 javascript 对象, 用来描述发生了什么, 里面除了type 必须的, 还会其它属性值来改变 state. { type: 'ADD_TODO', text: 'Go to…

Higher Order Reducers are simple reducer factories, that take a reducer as an argument and return a new reducer. In that new reducer, you can customize the behaviour of the original one which helps reducing the reducer logic. In this lesson, we'll se…

Redux 版本:3.7.2 Redux 是 JavaScript 状态容器,提供可预测化的状态管理. 说白了Redux就是一个数据存储工具,所以数据基础模型有get方法,set方法以及数据改变后通知的对象subscribe订阅者. getState: getter(取) dispatch: setter(存) subscribe: 订阅 Redux 提供了五个方法 createStore combineReducers bindActionCreators compose applyMiddl…

redux是一个数据状态管理的js框架,redux把行为抽象成一个对象,把状态抽象成一个很大的数据结构,每次用户或者其他什么方式需要改变页面都可以理解成对数据状态的改变,根据出发这次改变的不同从而有各式各样的action(行为),如何根据action(行为)来改变状态呢?这时候就需要一个reduce,reduce必须是一个纯函数,reduce是一个定义行为如何改变状态的逻辑处理的函数,action传入通过reduce的逻辑改变状态,最后状态发生改变,发出订阅消息,触发监听函数的执行.思路很简单,…

ng-repeat is similar to foreach loop in C#. Let us understand this with an example. Here is what we want to do. 1. For each employee we have in the employees array we want a table row. With in each cell of the table row we to display employee Firstna…