Recent questions tagged Reactjs

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reactjs - Cannot use JSX unless the '--jsx' flag is provided

I have looked around a bit for a solution to this problem. All of them suggest adding "jsx": "react" to your ... help debug this, let me know. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - How to include a Font Awesome icon in React's render()

Whenever I try to use a Font Awesome icon in React's render(), it isn't displayed on the resulting web page ... .net/pLWS3/ Where is the fault? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Should I use one or many useEffect in component?

I have some side effects to apply and want to know how to organize them: as a single useEffect or ... terms of performance and architecture? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Updating state on props change in React Form

I am having trouble with a React form and managing the state properly. I have a time input field in ... @props.value onChange: @props.onChange See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - How to update Firebase data to the React application in realtime

I'm developing an application that updates Firebase data in realtime to React. What I want to do is that a user updates ... </button> </div> ) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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840 views

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reactjs - Nesting routes and dynamically routing in React-router v4

I have following routing configuration: return (<div> <Router> <div> <Route path='/login' component={ ... way of authentication in reactjs? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - React Hooks - Modified state not reflecting immediately

I'm trying to refactor a class into a stateless component using React hooks. The component itself is very simple and I don ... </div> </div> ) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Blank page after running build on create-react-app

Trying to deploy create-react-app on netlify, however my build is blank page. I'm using .env file for ... build/static/css/main.8e671453.css See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - React Js require 'fs'

I have import fs from 'fs' and in my package.json I have Then I run the command > npm i fs > [email protected] node_modules/fs See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - jest: Test suite failed to run, SyntaxError: Unexpected token import

This is my jest configuration from the package.json file: "jest": { "automock": false, "browser": true, " ... 12) What am I doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - How to debug react native apps in visual studio code?

I am using visual studio code IDE to develop react native app and am not using expo library. Before that I ... using visual studio code IDE? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Testing React components that fetches data using Hooks

My React-application has a component that fetches data to display from a remote server. In the pre-hooks era, ... doesn't change the warning. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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786 views

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reactjs - React router 4 does not update view on link, but does on refresh

I am using the following simple nav code <Router> <Switch> <Route exact path='/dashboard' component={Dashboard} / ... manually go to that URL. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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596 views

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reactjs - React functions inside render()

Is there a preference on where you put functions inside a react component. I am still learning react so just trying to ... blah </div> ) } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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745 views

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reactjs - How do I type this 'as' JSX attribute in TypeScript?

I'm describing a React library that takes a component or HTML tag name through an attribute called as. When ... about typing this in TypeScript? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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920 views

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reactjs - React Hooks - How do I implement shouldComponentUpdate?

I know you can tell React to skip an effect by passing an array as an optional second argument. For example: ... function as a second argument. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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734 views

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reactjs - Get component name in React

I'm developing a React application. I have a Loading component, which is a little animation for waiting. I want to ... the right way to do that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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720 views

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reactjs - redirect after a fetch post call

I am creating an social login page with an Access Management (AM) server. When user click on the login button ... content in the web browser? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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666 views

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reactjs - React Router work on reload, but not when clicking on a link

I have setup the React with react-router version 4. The routing works when I enter the URL directly on the ... { }; export default AppComponent; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Is it safe to use ref.current as useEffect's dependency when ref points to a DOM element?

I'm aware that ref is a mutable container so it should not be listed in useEffect's dependencies, however ref ... use ref.current in useEffect. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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903 views

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reactjs - How to assign the correct typing to React.cloneElement when giving properties to children?

I am using React and Typescript. I have a react component that acts as a wrapper, and I wish to copy its ... , this.renderChildren()); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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534 views

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reactjs - How do I dynamically set HTML5 data- attributes using react?

I'd like to render an HTML5 attribute of a <select> input so that I can use jquery image picker with ... pass through properly into the HTML? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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626 views

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reactjs - How to nest routes in React Router v4?

Is there a way to nest routes in React Router v4? This works: <Router basename='/app'> <main> <Route path= ... padding: 15px; overflow: auto; ` See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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720 views

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reactjs - Pass object through Link in react router

Is it possible to pass an object via Link component in react-router? Something like: <Link to='home' params={{ ... way of achieving the above... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - When exactly is `componentDidMount` fired?

This is a recurring problem I have with React. The componentDidMount method is guaranteed to be fired when ... that explains what happens See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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reactjs - Automatic redirect after login with react-router

I wanted to build a Facebook login into my react/react-router/flux application. I have a listener registered ... reloading the page completely. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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820 views

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reactjs - Typescript + React/Redux: Property "XXX" does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes

I'm working on a project with Typescript, React and Redux (all running in Electron), and I've run into a ... I'm getting my problems elsewhere. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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784 views

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reactjs - How to include local javascript on a Gatsby page?

I'm a total React newbie and I guess there is something fundamental I don't quite understand here. A default Gatsby ... 2</Link> </Layout> ) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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