React can also be used on the backend with technologies like Next.js, which allows for server-side rendering of React applications, blurring the line between frontend and backend to some extent. Overall, though,
Mern stack is a combination of four technologies that work together as a very powerful full-stack web development stack. It is a pre-built javascript-based technology stack that consists ofMongoDB,Express.js,React.js, andNode.js. In the Mern stack, MongoDB is a document database that works...
On the other hand, if we useasync…awaitthen we can write error handling code in the same way as we do in plain JavaScript and many other programming languages - withtry…catchblocks: asyncfunctionprintValue2(){try{constvalue=awaitmyPromiseFunc();console.log("The value is ",value);}catch...
In this case, the callback function within .then() is executed once the promise is resolved. Async/Await Using async/await is another way to work with asynchronous code in a synchronous-looking manner. The async keyword is used to define a function that returns a promise, and await is use...
What should I do if "Connect server failed" is displayed due to abnormal registry? What should I do if there are three devices that cannot be identified in a single device manager? What should I do if the hdc server and client versions are inconsistent? What should I do if "Kill ...
Why does using @Watch to call async functions slow down UI responsiveness? How do I pass the click event of a component to other components? How do I remove the Video component from a page? What should I do if calling stopPropagation does not prevent the touch event from being dispatc...
import { Form } from "react-router"; import { dummyApi } from "./api"; export async function action({ request }: Route.ActionArgs) { let formData = await request.formData(); let title = formData.get("title"); let todo = await dummyApi.updateTodo({ title }); ...
import { useEffect } from "react"; function App() { const fetchData = async () => { const { data } = await axios.get("https://swapi.dev/api/people/1"); console.log(data); }; useEffect(() => { fetchData(); }, []); ...
functionwithDataFetching(WrappedComponent,fetchData){returnclassextendsReact.Component{constructor(props){super(props);this.state={data:null,isLoading:true,error:null};}asynccomponentDidMount(){try{constdata=awaitfetchData();this.setState({data,isLoading:false});}catch(error){this.setState({error,is...
“In any code where I start doing lots of requests and need to line them up with IDs from elsewhere, so I’m putting promises or resolve functions inside a map because I’m orchestrating lots of async things that aren’t promise based, you’re always having to do this. I need to ...