Recent questions tagged Reactjs

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reactjs - Authentication with Passport + Facebook + Express + create-react-app + React-Router + proxy

TLDR: How do I initiate the Facebook Auth process from a page in my React application? I've found quite a few ... the button at the top right. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Why won't React production build run on the browser?

I'm trying to build my react app using react's build tool. When I try to "npm start", the app works fine ... .html file on my apache web server? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function

I have this code import ReactDOM from "react-dom"; import React, { useState, useEffect } from "react"; ... in a useEffect cleanup function. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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762 views

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reactjs - Relative path in index.html after build

Hello i have a reactjs app, and I build my project with bellow command npm build Here is my package.json file: " ... icon" href="./favicon.ico"> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Migrating create-react-app from javascript to typescript

I started a react project using create-react-app few months ago and I'm interesting in migrating the project from ... done to make this work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Mocha testing failed due to css in webpack

I'm new to Mocha and I am trying to use it to test a simple React component. The test would pass ... Webpack Babel Mocha Chai Sinon Sinon-Chai See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - React-Redux complex (deep) state objects

Given my initial redux state is : const state = { currentView: 'ROOMS_VIEW', navbarLinks: List([ {name ... library without making major changes. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - How to config ESLint for React on Atom Editor

In Atom Editor I installed the following plugins linter linter-eslint It seems they don't recognize the JSX syntaxis ... to hack around this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Target Active Link when the route is active in Next.js

How to target the active Link in Next.js like they way we do it in React-Router-4? Meaning, give the active ... class when its route is active? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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875 views

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reactjs - Will a stateless component re-render if its props have not changed?

One thing I had learned about React is that if the props to a component don't change, then React doesn' ... change, like other React components? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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659 views

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reactjs - React: How much can I manipulate the DOM React has rendered?

This is what I am doing: jsfiddle The critical section is: position: function() { var container = $(this. ... great implications if it holds. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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617 views

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reactjs - Redux, Do I have to import store in all my containers if I want to have access to the data?

Perhaps I am not wrapping my head around redux, but all the examples I've seen don't really access state ... include it, store is undefined. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - setState(...): Can only update a mounted or mounting component. This usually means you called setState() on an unmounted component. This is a no-op

componentDidMount(prevProps, prevState, prevContext) { let [audioNode, songLen] = [this.refs.audio, List.length-1 ... }); in componentDidMount. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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743 views

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reactjs - react routing is able to handle different url path but tomcat returns 404 not available resources

I am new in reactjs and I have a little project in reactjs to play with and learn it. I need to have to ... this way at all? Can anyone help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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reactjs - Reset to Initial State with React Hooks

I'm currently working on a signup form and the following is a snippet of my code: const Signup = () => ... state back to its initial values? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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812 views

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reactjs - Material UI and Grid system

I'm playing a little bit with Material-UI. Are there any options for creating a grid layout (like in ... it has some different purpose. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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850 views

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reactjs - How to set up Google Analytics for React-Router?

I'm trying set up Google Analytics on my react site, and have come across a few packages, but none of ... , document.getElementById('root')); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Target another styled component on hover

What is the best way to handle hovers in styled-components. I have a wrapping element that when hovered will reveal a ... display: none; } } ` See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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932 views

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reactjs - When should I be using React.cloneElement vs this.props.children?

I am still a noob at React and in many examples on the internet, I see this variation in rendering child ... this to me with better examples? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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977 views

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reactjs - Invariant Violation: Could not find "store" in either the context or props of "Connect(SportsDatabase)"

Full code here: https://gist.github.com/js08/0ec3d70dfda76d7e9fb4 Hi, I have an application where it shows different ... unner.js:319:5) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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831 views

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reactjs - TypeScript and React - children type?

I have a very simple functional component as follows: import * as React from 'react'; export interface AuxProps { ... do I type this correctly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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966 views

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reactjs - react hooks useEffect() cleanup for only componentWillUnmount?

Let me explain the result of this code for asking my issue easily. const ForExample = () => { const [ ... when the component is being unmounted) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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753 views

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reactjs - JSX or HTML autocompletion in Visual Studio Code

Is there any way to use components or HTML completion in Visual Studio Code? Because typing each letter manually ... ; module.exports = Header; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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reactjs - How can I reach the variable which i named "global" from GlobalContext?

I have a GlobalContext.js file. I want to reach this part by having a variable named "global" in my ... ) }; export default HorizontalCircles; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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778 views

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reactjs - Material-UI withStyles doesn't apply any kind of styles

I used the example in Material-UI for an AppBar and I simply changed it from a function to a class component, ... . What am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

1 answer

reactjs - Losing state between renders if component is defined in another component

codesandbox here: https://codesandbox.io/s/restless-haze-v01wv?file=/src/App.js I have a Users component which ( ... happens in a "happy path" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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845 views

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reactjs - Using createMuiTheme to override default styles on div's, p's, body

This is perhaps a simple Material UI Theme Customization question. What I want to do is to override the default ... to actually use that style? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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976 views

1 answer

reactjs - React: Raw HTML tag in content

I am working on a React app. There is some dynamic content which contents HTML tags. When I am showing that ... please help? Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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