Recent questions tagged ReactJS

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reactjs - React countup animation starts immediately after the page loading , should start when scrolled to the component (without jquery)

I have a react single page app, with multiple components. For the 5th component(visible only when scrolled down) ... > </div>)} } 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: leave the contents of a component alone

Is it possible to have React ignore a subtree? i.e., don't compare or update it? My use case is migrating ... could adopt it slowly over time. 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 RTL. Conditional Import CSS

I am incorporating RTL to my React application. I have two CSS files, one for LTR and one for RTL. I have ... I am using React & webpack Regards 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 detect window size in Next.js SSR using react hook?

I am building an app using Next.js and react-dates. I have two component DateRangePicker component and ... safely regardless of ssr? 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 - browserHistory.push doesn't navigate to new page

I've set up browserHistory on a router with this (react-router 2.0): import { browserHistory } from 'react-router ... . 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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reactjs - How to use redux-toolkit createSlice with React class components

I've started using the redux-toolkit slicers in functional components, (example from react-redux example) slicer: export ... on this as well. 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 - Adding style attributes to a css class dynamically in react app

I'm using webpack with css-loader to load my css styles and add them to React components. import styles from '../ ... on how best to do 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 - Change root background color with Material-UI theme

I'm trying something very simple: building two themes for a website using Material-UI themes: A light theme and ... this with Material-UI theme? 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 embed the same redux-form multiple times on a page?

I'm having an issue trying to embed multiple forms on one page. I noticed configForm executes once, even ... behave independent of each other? 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 - public, src,and scripts folder not created while using create-react-app

I am trying to create a new project using create-react-app using the command given on the docs i.e npx ... folders like public src and script. 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' was used before it was defined

I am working with create-react-app + typescript + eslint application and during build have such error: Line 1:8: ' ... , but had the same error. 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 proptype array with shape

Is there a built-in way to use proptypes to ensure that an array of objects being passed to a component is ... would be highly sought after. 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 useEffect doesn't run on window.location.pathname changes?

Why useEffect doesn't run on window.location.pathname changes? I get loc logged only once. How can I make to ... }, [window.location.pathname]) 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 Native - __DEV__ is not defined

I have a [email protected] project. I have deleted the node_modules folder and after i have given the following ... not defined How do I fix? See Question&Answers more detail:os...

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

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698 views

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reactjs - Failed to execute 'removeChild' on 'Node' with FontAwesome in React

I'm getting the following error whenever I try to use a FontAwesome spinner icon (with className='fa-spin') in React: ... div> ) )} </div> ) See Question&Answers more detail:os...

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

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786 views

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reactjs - How to import a .txt file from my source?

I try to import a .txt file to show the text in a text box. My code: import React, { Component } from ... f2e86101.txt What is going wrong here? 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 - Must use destructuring props assignment (react/destructuring-assignment)

I've applied eslint airbnb standard to my code, so now this code: handleSubmit = (event) => { event. ... code to meet the eslint requirements? 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 we cannot pass boolean value as props in React , it always demands string to be passed in my code

Even though I have applied propType validation, my editor throws an error on when passing boolean value for the ... .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 - How to render images from an array using the map() method?

I'm trying to render my images that I stored in my array by using the map() method. Unfortunately I'm getting ... i'm getting from react DOM: See Question&Answers more detail:os...

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

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915 views

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reactjs - How to create a new object from parent/child relationships using recursive JavaScript map method

I've got an array of objects. Some of them have a wordpress_parent prop with a value `. This means this node is ... up please, and thank you! :D See Question&Answers more detail:os...

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

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944 views

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reactjs - Unit testing React Bootstrap modal dialog

I'm trying to unit test React Bootstrap modal dialog using Jasmine. But it is not working as expected. Here is ... tell me what is 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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1.2k views

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reactjs - React leaflet center attribute does not change when the center state changes

App.js import { useState } from 'react'; const App = () => { // This state is used to the center attribute ... answer a way to figure it out. See Question&Answers more detail:os...

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

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692 views

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reactjs - How to load AJAX in react

Im trying to get my json result into my react code The code looks like the following _getComments() { const ... i fetch AJAX into 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 - How to fix "Module build failed (from ./node_modules/babel-loader/lib/index.js):"?

So I have been trying to setup React Js environment. I am facing the babel dependencies error. I know this problem is very ... : "^4.31.0" } } See Question&Answers more detail:os...

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

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607 views

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reactjs - How to modify auto generated service-worker in Create-React-App

I have created a sample app from Create-React-App library. When I ran the build command then it generates a ... official doc 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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745 views

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reactjs - Why is my component rendering when useState is called with the same state?

I have a simple functional component with a boolean state. And buttons to change the state. It is initially ... ) } export default TestHooks; 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 - Conditional Import based on environment variable

I have a react component which has X options for a stylesheet to be imported which is using CSS Modules. I ... > ); export default Button; See Question&Answers more detail:os...

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

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803 views

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reactjs - Using React.lazy with TypeScript

I am trying to use React.lazy for code splitting in my TypeScript React app. All I am doing is changing that line: ... here to get it to 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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