Recent questions tagged reactjs

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reactjs - When giving unique keys to components, is it okay to use Math.random() for generating those keys?

Problem is the following: I have data in form of a list of a few thousand elements. Some of them are ... without having to worry about anything? 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 fetch data in server before render

I'm new to reactjs, I want to fetch data in server, so that it will send page with data to client. It is OK when the ... }) } </ul> </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 - 'Symbol' is undefined in IE after using babel

I have a reactjs app written using ES6 standards, and I use webpack to build it. The webpack loads the js ... would be appreciated, Thank you ! 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 - combine react build output into single js file

This is similar to this question however neither of the answers solves the problem. After running npm run ... rendered (page remains blank) 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 - webpack dev server CORS issue

I am using webpack-dev-server v1.10.1 to boost up my Redux project and I have the options below: contentBase: ... to resolve this? Thanks a lot See Question&Answers more detail:os...

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

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2.4k views

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reactjs - VirtualizedList: You have a large list that is slow to update

I use FlatList with large number of items. I get following alert from Expo XDE. VirtualizedList: You have a large ... of my FlatList is good. 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 - Getting DOM node from React child element

Using the React.findDOMNode method that was introduced in v0.13.0 I am able to get the DOM node of each child ... of what class the child is? See Question&Answers more detail:os...

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

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780 views

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reactjs - What does this "react-scripts eject" command do?

What does the npm run eject command do? I do understand what other commands do like start, build, test. But no idea about eject. 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 add sourcemap in React Native for Production?

I received error log like the following while the app crashed: Fatal Exception: com.facebook.react.modules.core ... .html Looks promising ! See Question&Answers more detail:os...

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

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638 views

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reactjs - React Router v4 with multiple layouts

I'd like to render some of my routes within my public layout, and some other routes within my private layout, ... wrap each page with a 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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668 views

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reactjs - How can I use Fabric.js with React?

I have an application using heavily HTML5 canvas via Fabric.js. The app is written on top of Angular 1.x, and I ... Fabric.js in a React app? 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 should I configure create-react-app to serve app from subdirectory?

I have classic web application rendered on server. I want to create admin panel as single page application in ... deployed in few environments. 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 - How do I load a markdown file into a react component?

How would I load a .md markdown file into a react component? I have tried so many npm libraries through google searches and ... .md" /> </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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593 views

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reactjs - Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema

I have this simple helloworld react app created from an online course, however I get this error: Invalid configuration object ... 3010' } } } }; See Question&Answers more detail:os...

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

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599 views

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reactjs - My Redux state has changed, why doesn't React trigger a re-render?

I am trying to design a notification component where notifications will appear on certain occasions (like connections problems, ... 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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1.2k views

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reactjs - Disable back button in react navigation

I'm using react native navigation (react-navigation) StackNavigator. it starts from the Login page throughout the ... other screens here }) See Question&Answers more detail:os...

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

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890 views

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reactjs - How can I reset a react component including all transitively reachable state?

I occasionally have react components that are conceptually stateful which I want to reset. The ideal behavior ... replaceState is more robust. See Question&Answers more detail:os...

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

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657 views

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reactjs - Is it OK to use React.render() multiple times in the DOM?

I want to use React to add components multiple times throughout the DOM. This fiddle shows what I'm looking to do, ... an OK way to use React? See Question&Answers more detail:os...

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

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772 views

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reactjs - How to use materialize-css with React?

I have a Meteor/React project, using ES6 modules. I've installed materialize-css using npm, but I'm not ... ui for the actual UI components. See Question&Answers more detail:os...

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

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623 views

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reactjs - Read the current full URL with React?

How do I get the full URL from within a ReactJS component? I'm thinking it should be something like this.props.location but it is undefined See Question&Answers more detail:os...

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

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950 views

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reactjs - How to sync props to state using React hooks : setState()

I am trying to set the state using React hook setState() using the props the component receive. I've tried ... this case? Thanks in advance. 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 - In useEffect, what's the difference between providing no dependency array and an empty one?

I gather that the useEffect Hook is run after every render, if provided with an empty dependency array: useEffect(( ... doesn't throw a 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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632 views

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reactjs - React router, pass data when navigating programmatically?

We could navigate to different path using this.props.router.push('/some/path') Is there a way to send params ( ... it there in the first place) See Question&Answers more detail:os...

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

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855 views

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reactjs - React - How to pass HTML tags in props?

I want to be able to pass text with HTML tags, like so: <MyComponent text="This is <strong>not</strong> ... HTML and dump it out properly? See Question&Answers more detail:os...

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

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630 views

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reactjs - When to use useImperativeHandle, useLayoutEffect, and useDebugValue

I cannot understand why the following useImperativeHandle, useLayoutEffect, and useDebugValue hooks are needed, can ... documentation please. See Question&Answers more detail:os...

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

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579 views

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reactjs - React ignores 'for' attribute of the label element

In React (Facebook's framework), I need to render a label element bound to a text input using the standard for ... "> 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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553 views

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reactjs - Passing values through React-Router v4 <Link />

Question: How can I pass a prop or a single value, like an _id, through React-Router's Link component, ... Any help will be greatly appreciated. See Question&Answers more detail:os...

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

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852 views

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reactjs - Axios: chaining multiple API requests

I need to chain a few API requests from the Google Maps API, and I'm trying to do it with Axios. Here ... the third happens after the first two? See Question&Answers more detail:os...

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

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