reactjs

问题 I was trying to understand what's the difference between ReactDOMServer.renderToString() and ReactDOMServer.renderToStaticMarkup() on React 16.8.6. This is what I understood: renderToStaticMarkup() is used on the server side when you just want to render the markup and don't want to hydrate it on the client side. (https://reactjs.org/docs/react-dom-server.html#rendertostaticmarkup) renderToString() is used on the server side when you want to use the ReactDOM.hydrate() function to hydrate the

问题 I was trying to understand what's the difference between ReactDOMServer.renderToString() and ReactDOMServer.renderToStaticMarkup() on React 16.8.6. This is what I understood: renderToStaticMarkup() is used on the server side when you just want to render the markup and don't want to hydrate it on the client side. (https://reactjs.org/docs/react-dom-server.html#rendertostaticmarkup) renderToString() is used on the server side when you want to use the ReactDOM.hydrate() function to hydrate the

问题 How can I use radio inputs instead of checkboxes for a selectable table in React Table? There is an example for checkboxes but not radio buttons: https://github.com/tannerlinsley/react-table/blob/master/examples/row-selection/src/App.js Changing the IndeterminateCheckox to use a radio input doesn't work as the selection state is not updated in React Table: const IndeterminateCheckbox = React.forwardRef(({ indeterminate, ...rest }, ref) => { const defaultRef = React.useRef(); const resolvedRef

问题 How can I use radio inputs instead of checkboxes for a selectable table in React Table? There is an example for checkboxes but not radio buttons: https://github.com/tannerlinsley/react-table/blob/master/examples/row-selection/src/App.js Changing the IndeterminateCheckox to use a radio input doesn't work as the selection state is not updated in React Table: const IndeterminateCheckbox = React.forwardRef(({ indeterminate, ...rest }, ref) => { const defaultRef = React.useRef(); const resolvedRef

问题 Error: ENOSPC: no space left on device, watch '/home/me/Desktop/Edu/Web/JS/React/weather_app/public' I have over 700gb free space on my HDD, so don't think it is related to the error. !After the error it became unavailable to run 'npm start' on any project present on my machine. Today I started work on my project that I left yesterday evening in a perfectly working state. I wanted to add redux to my React project. Steps I made were: Initializing a local git repository and commiting the key

问题 Error: ENOSPC: no space left on device, watch '/home/me/Desktop/Edu/Web/JS/React/weather_app/public' I have over 700gb free space on my HDD, so don't think it is related to the error. !After the error it became unavailable to run 'npm start' on any project present on my machine. Today I started work on my project that I left yesterday evening in a perfectly working state. I wanted to add redux to my React project. Steps I made were: Initializing a local git repository and commiting the key

问题 This question already has an answer here : way to embed if expressions inside JSX code? (1 answer) Closed 4 years ago . I can't seem to get my jsx es6 react if statement to work.. What am I doing wrong? const otherVariables = doesntMatter; return ( ... <div> {if (props.student.length == null && props.teacher.length == null) => ( <p>empty</p> ) : ( <p>not empty</p> )} </div> ... ) How can i check if both arrays are empty? 回答1: There is a syntax error, you are testing an lambda expression. You

问题 I was read some tutorial about this. They told me should using ref to do that. But It's very general. Here is my problem: Basically in Header component include NavBar , SearchBar and ResultSearch component. const Header = () => { return ( <header className="ss_header"> <Navbar /> <SearchBar /> <ResultSearch /> </header> ); }; And In SearchBar component. Whenever I focused on input text. It emit an event and display ResultSearch component by any way (changing style, or ...). class SearchBar

问题 I was read some tutorial about this. They told me should using ref to do that. But It's very general. Here is my problem: Basically in Header component include NavBar , SearchBar and ResultSearch component. const Header = () => { return ( <header className="ss_header"> <Navbar /> <SearchBar /> <ResultSearch /> </header> ); }; And In SearchBar component. Whenever I focused on input text. It emit an event and display ResultSearch component by any way (changing style, or ...). class SearchBar

问题 I recently created a website with create-react-app. Since this is not a web app, why do I need a server to see it? I tried to open the index file in build folder but it doesn't work unless I'm serving it from a server. 回答1: You can set the homepage root url in the package.json file e.g. { ..., "homepage":"file:///<path to build directory" } npm run build This will now find the static content in the build directory from the file system without a server. 来源： https://stackoverflow.com/questions