JAVASCRIPT

react 404 page not found

<Router>
  <Routes>
    ...
    <Route path="*" element={<PageNotFound />} />
  </Routes>
</Router>

404 page in react

//you can do this only with react router dom 
//just do this
<Route path="*" element={<ErrorPage/>} />
 <Route path="" element={<ErrorPage/>} />
<Route  element={<ErrorPage/>} />

  //* in react router dom mean 404 error page

react router 404

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /
  RewriteRule ^index.html$ - [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !-l
  RewriteRule . /index.html [L]
</IfModule>