Error: [PrivateRoute] is not a <Route> component. All component children of <Routes> must be a <Route> or <React.Fragment>
I'm using React Router v6 and am creating private routes for my application. In file PrivateRoute.js, I've the code import React from 'react'; import {Route,Navigate} from "react-router-dom"; import {isauth} from 'auth' function PrivateRoute({ element, path }) { const authed = isauth() // isauth() returns true or false based on localStorage const ele = authed === true ? element : <Navigate to="/Ho
![Error: [PrivateRoute] is not a <Route> component. All component children of <Routes> must be a <Route> or <React.Fragment>](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)
When to use JSX.Element vs ReactNode vs ReactElement?
I am currently migrating a React application to TypeScript. So far, this works pretty well, but I have a problem with the return types of my render functions, specifically in my functional components. I have always used JSX.Element as the return type, now this doesn't work any more if a component decides to not render anything, i.e. returns null, since null is not a valid value for JSX.Element. Th
'React' was used before it was defined
I am working with create-react-app + typescript + eslint application and during build have such error: Line 1:8: 'React' was used before it was defined @typescript-eslint/no-use-before-define Code in my component starts with: import React from "react"; Eslint settings: module.exports = { parser: "@typescript-eslint/parser", parserOptions: { ecmaVersion: 2020, sourceType: "module", ecmaFeatures: {
React Hook Warnings for async function in useEffect: useEffect function must return a cleanup function or nothing
Note: If you want to support SSR/SSG for SEO, use framework specific api from React-router/Remix, Next.js or Gatsby. For React version >=19 We now have nice loader and form action api: Loading data: function Comments({ dataPromise }) { const data = use(dataPromise); return <div>{JSON.stringify(data)}</div>; } async function loadData() { return { data: "some data" }; } export function Index() { ret
React Hooks: Why is .current null for useRef Hook?
I have a simple example of a component: function App() { const observed = useRef(null); console.log(observed.current); return ( <div ref={observed} className="App"> <h1>Hello CodeSandbox</h1> <h2>Start editing to see some magic happen!</h2> </div> ); } const rootElement = document.getElementById("root"); ReactDOM.render(<App />, rootElement); I would expect that observed.current would be of type e
Typescript, how to pass "Object is possibly null" error?
I've got the "Object is possibly null" error many times and usually I use a safety "if statement" in case it returns null. I've got the following function: const ModalOverlay = (props: any[]) => { const overlayEl = useRef(null); useEffect(() => { overlayEl.current.focus(); }); return <div {...props} ref={overlayEl} />; } But overlayEl.current gets the error "Object is not defined". So I've tried:
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
React Hooks: handle multiple inputs
React app stuck on "Starting the development server"
How to refresh react page after error handling
React-Router External link
React hooks useEffect only on update?
Getting error after I put Async function in useEffect
Set loading state before and after an action in a React class component
Why React.FC doesn't allow me to just return children?
By clicking text how to change clicked text to another text in React.js