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javascript - React calls stateless components React is not defined

I created a stateless component and called it. The result was an error: React is not defined. As a result, if I added import React from 'react' before defining the stateless component, the error would not be reported. {Code...}

伊謝爾倫 2017-06-14 10:54:33 0  2  975

javascript - React configured routing·doesn't work

路由配置如下:import React from 'react';import ReactDom from 'react-dom';import Index from './index';import {Router,Route,hashHistory} from 'react-router';import ComponentList from './components/lis...

為情所困 2017-05-19 10:10:34 0  1  647

How to use react in jsp page?

Normally reference react, react-dom. Use react to insert components into a jsp page and report syntax errors. Can react be used in jsp? If it can be used, how should it be used? ?

天蓬老師 2017-06-14 10:53:46 0  2  1640

react-native warning in chrome debug tools and can't use react dev-tools

1. I use react@16.0.0-alpha.12, react-native@0.45.1, and it can be used normally in simulation, but a warning appears in the chrome debugging tool: {code...} {code.. .} and cannot use react dev-tools to debug my code: {code...}

世界只因有你 2017-07-03 11:42:25 0  2  1151

When using 'React' in JSX, it must be included in the scope react/react-in-jsx-scope

I'm an Angular developer and new to React, and here's a simple React component, but it doesn't work. importreact,{Component}from'react';import{render}from'react-dom';classTechViewextendsComponent{constructor(props){super(props);this.state={name:'Gopinat

P粉364642019 2023-09-18 19:58:41 0  2  779

react-native - How to run a react native project cloned from github locally

I made a simple small contact demo of react native on one computer, using react-native-cli, and then put it on github. Now I clone the project on another computer, and after npm install, react-native run-android reports an error when installed on the emulator, is it...

習(xí)慣沉默 2017-05-02 09:51:12 0  2  1244

`npx create-react-app` cannot be used directly when creating a React project

When I create a React app, I should first run the command "npminstallcreate-react-app" and then "npxcreate-react-appname", otherwise it will give an error, but others only need to run the second command, why? I tried downloading the latest version of Node.js, npm, and clearing th...

P粉704066087 2023-08-09 13:03:49 0  1  1078

Personal React app deployment fails on Vercel

//errordeploytovercelnpmERR!codeERESOLVEnpmERR!ERESOLVEcouldnotresolvenpmERR!npmERR!Whileresolving:@testing-library/react@13.4.0npmERR!Found:react@17.0.0npmERR!node_modules/reactnpmERR!react@"^17

P粉821808309 2024-02-21 14:23:54 0  1  734

javascript - Will vuejs move closer to react step by step and eventually be called small react or simplified version of react?

Nowadays, the most popular front-end mvvm framework is react, and many people think that You Yuxi intends to align with react, so it is inevitable that there will be such doubts?

習(xí)慣沉默 2017-05-19 10:10:35 0  6  993

Creating a React project using a clone of create-react-app: a step-by-step guide

I have a modified create-react-app and cloned its repository, how do I create a new React project using this cloned repository?

P粉969253139 2024-04-03 20:26:53 0  1  626

How to create react-native project with dva - Stack Overflow

I want to study dva with react-native. By default, react projects are created using dva. If you want to create a react-native project, can you just add react-native directly to the package?

大家講道理 2017-05-19 10:31:58 0  1  658

How to understand controlled elements in react

How to understand controlled elements in react? Use state control? How to understand controlled elements in react? Use state control?

Jack chen 2023-11-16 14:51:10 1  1  851

Rendering static folders for React routes

I have some legacy static code (HTML, CSS, jQuery, JS, etc.) in my folder. Now I need to render these on a specific route in my react app. Due to some policy reasons I cannot use iFrame. I don't want to rewrite it in React for two reasons: This is a single page containing legacy code. Not worth the ...

P粉107772015 2024-01-16 23:33:04 0  1  620

React 6.4.0 Common headers for all routers

I'm starting a React project using react-router-dom version 6.4.0 but I can't create a common header for all routes. App.js - This is the file where I added the RouterProvider importlogofrom'./logo.svg';import'./App.css';import{Link,Outlet,RouterProvider}from"react-router-dom";import

P粉864872812 2023-08-25 17:19:53 0  1  598

javascript - Virtual DOM manipulation in react components

Explanation: I am a beginner of reactJS; the requirements are as follows: 1. react component aa.jsx {code...} 2. react component bb.jsx {code...} 3. react main entrance main.jsx needs to be based on a json file to load the required components {code...} But here comes the problem,...

PHPz 2017-05-31 10:40:48 0  2  1014

Convert React ImageSlider to NextJS

I have the following image slider in React and it works as expected: importReact,{useState,useEffect}from"react";importitem1from"./../assets/images/items/1.jpg";importitem2from"./. ./assets/images/items/2.gif";constim

P粉225961749 2024-04-05 10:45:23 0  1  2641

html5 - I encountered a problem while watching the demo of react router

import React from 'react'import { render } from 'react-dom'import App from './modules/App'render(<App/>, document.getElementById('app')) The first line means Import the entire js from react and name it React. The second line...

阿神 2017-05-31 10:40:18 0  1  803

How to left align text in Bootstrap and React

I'm using react, react-bootstrap. Here is my react code snippet:<Navbarbg="light"expand="lg"className="d-lg-nonecontainer-fluid"><Navbar.Togglearia-controls="responsive-course-nav&qu

P粉685757239 2024-03-26 17:42:38 0  1  603

react native react-hook-form controller rule validation not working

I have an application developed using ReactNative. I'm using react-hook-form for login and registration screens. I have a validation schema that I created. I can't use this validation scheme with the rules of react-hook-form controller because I can't assign the input value, please help! constformKe...

P粉445714413 2024-03-26 18:35:16 0  1  628

javascript - sublime development react plug-in recommendation

Sublime development react plug-in recommended???

typecho 2017-07-05 11:07:24 0  2  1086