react-dom

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 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 am trying to use React Portal functionality, but can't seem to get it to work (am using React v16.2 and ReactDOM v16.2). In the example below, when I click the 'click me' link 'yey!' should appear but it doesn't: HTML: <div id="app-root"></div> <div id="toast-root"></div> JavaScript: const appRoot = document.getElementById('app-root'); const insertToast = (toastRoot) => ReactDOM.createPortal( 'yey!', toastRoot, ); class App extends React.Component { insertToasts() { const toastRoot =

问题 This problem occurs only if the state value was actually changed due to the previous update. In the following example, when the button is clicked for the first time, "setState" is called with a new value (of 12), and a component update occurs, which is understandable. When I click the same button for the second time, setting the state to the same value of 12 it causes the component to re-run (re-render), and why exactly that happens is my main question. Any subsequent setStates to the same

问题 This problem occurs only if the state value was actually changed due to the previous update. In the following example, when the button is clicked for the first time, "setState" is called with a new value (of 12), and a component update occurs, which is understandable. When I click the same button for the second time, setting the state to the same value of 12 it causes the component to re-run (re-render), and why exactly that happens is my main question. Any subsequent setStates to the same

问题 I am working on a React app. There is some dynamic content which contents HTML tags. When I am showing that content on the page, it's showing with raw HTML tag. For say: const msg = "Some <strong>text</strong> here" I want to show like this on page Some text here If I use dangerousHtml then it's showing like this without bold "Some text here" Can anyone please help? Thanks in advance! 回答1: You can use the 'dangerouslySetInnerHTML' like: const msg = () => ({__html: 'Some <strong>text</strong>

问题 I am building a GoogleMaps Polygon widget in React JS and want to populate the infowindow with a react component because I need some more complex HTML hierarchy, adding a button in it. I looked on StackOverflow because I wasn't sure how to get the innerHTML of a React component and found this: How to use a react component for showing Google Maps InfoWindow But after implementing I am getting an error on the renderToString function every first time a Polygon is being clicked, see below. Does

问题 I am building a GoogleMaps Polygon widget in React JS and want to populate the infowindow with a react component because I need some more complex HTML hierarchy, adding a button in it. I looked on StackOverflow because I wasn't sure how to get the innerHTML of a React component and found this: How to use a react component for showing Google Maps InfoWindow But after implementing I am getting an error on the renderToString function every first time a Polygon is being clicked, see below. Does

问题 After deploying my mern app to Heroku, the GET request on the home page ('http://localhost:8000/post/') is now returning index.html instead of json data from the request. I'm getting 200 status code but the response is html . However, it works fine locally. All the other requests are working except this one. Whenever I think I've fixed it, Heroku displays the json data instead of the UI on this same route. I'm assuming that these issues are related. How can I solve this? Thanks! route