Detailed explanation of using Vuex method in React
This time I will bring you a detailed explanation of the method of using Vuex in React. What are the precautions for using Vuex in React? Here are practical cases, let’s take a look.
I have always been a loyal fan of Redux, but after using Vuex, I lamented how quickly I got started with Vuex, so I came up with the idea of writing a Vuex-like library that can be used in React, temporarily named Ruex.How to use
1: Create a Store instance:
Same as vuex, use a single The state tree (an object) contains all application-level states (store). store can configure state, mutations, actions and modules attributes:- state: store data
- mutations: change state The only way is to submit a mutation
- actions :Action submits a mutation instead of directly changing the state. Action can contain any asynchronous operation, trigger mutations, and trigger other actions.
Middleware: Middleware will be executed before and after each mutation is triggered.
store.js:import {createStore} from 'ruex'
const state = {
total_num:1111,
}
const mutations = {
add(state,payload){
state.total_num += payload
},
double(state,payload){
state.total_num = state.total_num*payload
},
}
const actions = {
addAsync({state,commit,rootState,dispatch},payload){
setTimeout(()=>{
commit('add',payload)
},1000)
},
addPromise({state,commit,rootState,dispatch},payload){
return fetch('https://api.github.com/search/users?q=haha').then(res=>res.json())
.then(res=>{
commit('add',1)
dispatch('addAsync',1)
})
},
doubleAsync({state,commit,rootState,dispatch},payload){
setTimeout(()=>{
commit('double',2)
},1000)
},
doublePromise({state,commit,rootState,dispatch},payload){
return fetch('https://api.github.com/search/users?q=haha').then(res=>res.json())
.then(res=>{
commit('double',2)
dispatch('doubleAsync',2)
})
},
}
// middleware
const logger = (store) => (next) => (mutation,payload) =>{
console.group('before emit mutation ',store.getState())
let result = next(mutation,payload)
console.log('after emit mutation', store.getState())
console.groupEnd()
}
// create store instance
const store = createStore({
state,
mutations,
actions,
},[logger])
export default storeBind the Store instance to the component
ruex provides Provider to facilitate store instance registration to the global context. Similar to react-redux. App.js:import React from 'react'
import {Provider} from 'ruex'
import store from './store.js'
class App extends React.Component{
render(){
return (
<Provider store={store} >
<Child1/>
</Provider>
)
}
}Use or modify the data on the store
After the store binding is completed, in the component You can use the data on the state and modify the state by triggering mutations or actions. For specific methods, please refer to the binding method of react-redux: using connect high-order components. Child1.js:import React, {PureComponent} from 'react'
import {connect} from 'ruex'
class Chlid1 extends PureComponent {
state = {}
constructor(props) {
super(props);
}
render() {
const {
total_num,
} = this.props
return (
<p className=''>
<p className="">
total_num: {total_num}
</p>
<button onClick={this.props.add.bind(this,1)}>mutation:add</button>
<button onClick={this.props.addAsync.bind(this,1)}>action:addAsync</button>
<button onClick={this.props.addPromise.bind(this,1)}>action:addPromise</button>
<br />
<button onClick={this.props.double.bind(this,2)}>mutation:double</button>
<button onClick={this.props.doubleAsync.bind(this,2)}>action:doubleAsync</button>
<button onClick={this.props.doublePromise.bind(this,2)}>action:doublePromise</button>
</p>)
}
}
const mapStateToProps = (state) => ({
total_num:state.total_num,
})
const mapMutationsToProps = ['add','double']
const mapActionsToProps = ['addAsync','addPromise','doubleAsync','doublePromise']
export default connect(
mapStateToProps,
mapMutationsToProps,
mapActionsToProps,
)(Chlid1)- mapStateToProps: Bind the
data on the state to the current component's on props.
- mapMutationsToProps: Bind mutations to props. For example: mutation can be triggered by this.props.add(data) when calling, and the data parameter will be received by the payload parameter of mutation.
- mapActionsToProps: Bind actions to props.
Internal implementation
ruex internally uses immer to maintain store state updates, so in mutation, it can be modified directly An object's properties change state without returning a new object. For example:const state = {
obj:{
name:'aaaa'
}
}
const mutations = {
changeName(state,payload){
state.obj.name = 'bbbb'
// instead of
// state.obj = {name:'bbbb'}
},
}vue built-in instruction instructions
How FileReader implements a file reader
The above is the detailed content of Detailed explanation of using Vuex method in React. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Detailed explanation of obtaining administrator rights in Win11
Mar 08, 2024 pm 03:06 PM
Windows operating system is one of the most popular operating systems in the world, and its new version Win11 has attracted much attention. In the Win11 system, obtaining administrator rights is an important operation. Administrator rights allow users to perform more operations and settings on the system. This article will introduce in detail how to obtain administrator permissions in Win11 system and how to effectively manage permissions. In the Win11 system, administrator rights are divided into two types: local administrator and domain administrator. A local administrator has full administrative rights to the local computer
Detailed explanation of division operation in Oracle SQL
Mar 10, 2024 am 09:51 AM
Detailed explanation of division operation in OracleSQL In OracleSQL, division operation is a common and important mathematical operation, used to calculate the result of dividing two numbers. Division is often used in database queries, so understanding the division operation and its usage in OracleSQL is one of the essential skills for database developers. This article will discuss the relevant knowledge of division operations in OracleSQL in detail and provide specific code examples for readers' reference. 1. Division operation in OracleSQL
PHP, Vue and React: How to choose the most suitable front-end framework?
Mar 15, 2024 pm 05:48 PM
PHP, Vue and React: How to choose the most suitable front-end framework? With the continuous development of Internet technology, front-end frameworks play a vital role in Web development. PHP, Vue and React are three representative front-end frameworks, each with its own unique characteristics and advantages. When choosing which front-end framework to use, developers need to make an informed decision based on project needs, team skills, and personal preferences. This article will compare the characteristics and uses of the three front-end frameworks PHP, Vue and React.
Integration of Java framework and front-end React framework
Jun 01, 2024 pm 03:16 PM
Integration of Java framework and React framework: Steps: Set up the back-end Java framework. Create project structure. Configure build tools. Create React applications. Write REST API endpoints. Configure the communication mechanism. Practical case (SpringBoot+React): Java code: Define RESTfulAPI controller. React code: Get and display the data returned by the API.
Detailed explanation of the role and usage of PHP modulo operator
Mar 19, 2024 pm 04:33 PM
The modulo operator (%) in PHP is used to obtain the remainder of the division of two numbers. In this article, we will discuss the role and usage of the modulo operator in detail, and provide specific code examples to help readers better understand. 1. The role of the modulo operator In mathematics, when we divide an integer by another integer, we get a quotient and a remainder. For example, when we divide 10 by 3, the quotient is 3 and the remainder is 1. The modulo operator is used to obtain this remainder. 2. Usage of the modulo operator In PHP, use the % symbol to represent the modulus
Vue.js vs. React: Project-Specific Considerations
Apr 09, 2025 am 12:01 AM
Vue.js is suitable for small and medium-sized projects and fast iterations, while React is suitable for large and complex applications. 1) Vue.js is easy to use and is suitable for situations where the team is insufficient or the project scale is small. 2) React has a richer ecosystem and is suitable for projects with high performance and complex functional needs.
React's Role in HTML: Enhancing User Experience
Apr 09, 2025 am 12:11 AM
React combines JSX and HTML to improve user experience. 1) JSX embeds HTML to make development more intuitive. 2) The virtual DOM mechanism optimizes performance and reduces DOM operations. 3) Component-based management UI to improve maintainability. 4) State management and event processing enhance interactivity.
Detailed explanation of how to operate hidden apps on Black Shark phone
Mar 24, 2024 pm 12:09 PM
Detailed explanation of how to operate hidden applications on Black Shark mobile phones As mobile phone functions continue to improve, modern people’s needs for mobile phones are becoming more and more diverse. Some people may save some private information or personal photos on their mobile phones. In order to protect privacy and security, many mobile phones provide the function of hiding applications. As a mobile phone specially designed for gamers, Black Shark also provides users with the function of hiding applications. Let’s introduce in detail the operation method of hidden applications on Black Shark mobile phone. Step 1: Open the “Settings” interface. First, the user needs to open the Black Shark mobile phone.
