I am having problems with My ReactJS code, and it keeps telling me that the target container is not a DOM element, no matter how many times I rearrange the code. It does NOT involve HTML and I really don't know whats causing this error. Any help? What even is a target container?
import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import registerServiceWorker from './registerServiceWorker';
import Home from "./components/Home";
import login from "./components/login"
import Header from "./components/Header";
//import PageAccount from './components/PageAccount';
import PageBlog from './components/PageBlog';
import PageBlogCreate from './components/PageBlogCreate';
import PageSearch from "./components/PageSearch";
//import PageLogin from './components/PageLogin';
import PageError from './components/PageError';
import {BrowserRouter} from "react-router-dom";
import {Switch} from "react-router-dom";
import {Route} from "react-router-dom";
import "./sass/index.css";
import App from "./App";
import ContextHandler from "./ContextHandler"
ReactDOM.render((
/*
<BrowserRouter>
<div>
<Switch>
<Route path="/" exact component={Home}/>
{ /*<Route path="/about" exact component={About}/>
<Route path="/news" exact component={News}/>
<Route path="/login" exact component={Login}/>
<Route path="/search" exact component={Search}/> }
<Route path="/" exact component={Header}/>
{ /*<Route path="/account" exact component={PageAccount}/>
<Route path="/blog" exact component={PageBlog}/>
<Route path="/blog/create" exact component={PageCreateBlog}/>}
<Route path="/search" exact component={PageSearch}/>
{/*<Route path="/login" exact component={PageLogin}/>
<Route path="*" component={PageError}/>}
<Route path="/search" exact component={PageSearch}/>
<Route path="/login" exact component={login}/>
{ <Route path="*" component={PageError}/> }
</Switch>
</div>
</BrowserRouter>
*/
//),
<ContextHandler>
<App />
</ContextHandler>
,
ReactDOM.render(<App />, document.getElementById('root'))));
registerServiceWorker();
Try this:
ReactDOM.render(
<ContextHandler>
<App />
</ContextHandler>,
document.getElementById('root')
)
And make sure your index.html contains a <div id="root"></div>.
You can't have nested ReactDOM.render calls like that
Related
I want to add the base URL to my react.js project.
However I had tried couple of methods that did not work.
For example, if my project url is :
http://www.myproject.com/
It should appear in address bar as :
http://www.myproject.com/app
http://www.myproject.com/app/home // If home page
http://www.myproject.com/app/about // If about page
Below is my project code.
index.js
import "./index.css"
import React from 'react';
import ReactDOM from 'react-dom/client';
import { AuthProvider } from './context/AuthProvider';
import {BrowserRouter, Routes, Route} from 'react-router-dom'
import { disableReactDevTools } from '#fvilers/disable-react-devtools';
import App from './App';
if (process.env.NODE_ENV === 'production') {
disableReactDevTools();
}
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
<BrowserRouter>
<AuthProvider>
<Routes>
<Route path="/*" element={<App />} />
</Routes>
</AuthProvider>
</BrowserRouter>
);
App.js
import Layout from './components/authController/Layout'
import Login from './components/authController/Login';
import Home from './components/authController/Home'
import AllUser from './components/authController/AllUser'
import RequireAuth from './components/authController/RequireAuth';
import PersistLogin from './components/authController/PersistLogin';
import Logout from './components/authController/Logout';
import Missing from './Missing';
import {Routes, Route, Navigate} from 'react-router-dom'
function App() {
return (
<div>
<Navbar/>
<Routes>
<Route path="/" element={<Layout />}>
{/* public routes */}
<Route path="login" element={<Login />} />
<Route path="loggedOut" element={<Logout />} />
{/* we want to protect these routes */}
<Route element={<PersistLogin />}>
<Route path="/" element={<Navigate to="/home" replace />} />
<Route path="home" element={<Home/>} />
<Route element={<RequireAuth/>}>
<Route path="alluser" element={<AllUser />} />
</Route>
</Route>
{/* catch all */}
<Route path="*" element={<Missing />} />
</Route>
</Routes>
</div>
);
}
export default App;
What I had tried?
As I referred in stackoverflow and also many other websites, integrated below methods.
Added base url inside package.json file
"homepage": "/app",
Tried to pass the tag <base href="http://myapp.com/app"> within <head> tag in public/index.html page
Passed the base url within BrowserRouter in index.js <BrowserRouter basename="app"> </BrowserRouter>
I am sure I am missing something, it would be great learning if someone help on this or give insights on this.
Thank you
I don't know the correct answer to this , but I believe that you can redirect the route "/" to "/app" . I hope this can help you
Solution:-
Hello everyone.
I got the solution for my query.
I have modified the index.js file like below
<Routes>
<Route path="app/*" element={<App />} />
<Route path="/*" element={<Navigate to="app/home" replace />} />
</Routes>
I learnt that after the newly released react packages, the tag in react-router-dom do not work again so I changed to "Routes" after a couple of research online but still, it isn't working. Below is a screenshot from my PC.
Also this is the code
import React from 'react';
import Navbar from './components/Navbar'
import {BrowserRouter as Router, Routes, Route} from 'react-router-dom';
import './App.css';
import Home from './components/pages/Home';
import Services from './components/pages/Services';
import Products from './components/pages/Products';
import SignUp from './components/pages/SignUp';
function App(){
return (
<>
<Router>
<Navbar />
<Routes>
<Route exact path="/" component={Home} />
<Route path="/services" component={Services} />
<Route path="/products" component={Products} />
<Route path="/sign-up" component={SignUp} />
</Routes>
</Router>
</>
);
}
export default App;
//<HeroSection />
//import HeroSection from './components/HeroSection';
On new version of react-router-dom this should work. Check it.
<Routes>
<Route path="/" element={<Home />} />
<Route path="/services" element={<Services />} />
<Route path="/products" element={<Products />} />
<Route path="/sign-up" element={<SignUp />} />
</Routes>
Paste your error please. There would another issue
I am trying to create a website with React, but my code is not working and i dont understand why..
I have this code in index.js, because I want my header to always be there.
const element = <h1>Header</h1>; ReactDOM.render(element, document.getElementById('root'));
I have created a few components, and I have this code in my App.js
import React, {Component} from 'react';
import {BrowserRouter as Router, Route, Switch, Link, BrowserRouter} from 'react-router-dom';
import {Home} from './Components/Home';
import {About} from './Components/About';
import {Contact} from './Components/Contact';
import {Resume} from './Components/Resume';
import {Photos} from './Components/Photos';
import {NoMatch} from './Components/NoMatch';
class App extends Component {
render(){
return(
<React.Fragment> <Router> <switch>
<Route path="/" exact component={Home} />
<Route path="/about" component={About} />
<Route path="/contact" component={Contact} />
<Route path="/resume" component={Resume} />
<Route path="/photos" component={Photos} />
<Route component={NoMatch} />
</switch>
</Router>
</React.Fragment>
);
}
}
And all my components looks like this now, just temporarly:
import React from 'react'
export const About = () => (
<div>
<h2>About</h2>
</div>
)
The problem is that i only see "Header" on all pages, and when i change the path to localhost../About, it does not show anything else but "Header".
Why is not my code working and the code in my components showing in the different paths?
I've used the npm create-react-app and uses visualstudiocode. Thank you for the help, much appreciated :)
Btw, im following a tutorial and it is working for him but not me for some reason...
The Switch needs to be with a capital letter 'S'
<Router>
<Switch>
<Route path="/" exact component={Home} />
<Route path="/about" component={About} />
<Route path="/contact" component={Contact} />
<Route path="/resume" component={Resume} />
<Route path="/photos" component={Photos} />
<Route component={NoMatch} />
</Switch>
</Router>
Shouldn’t ‘switch’ be with a capital letter ( Switch )?
Is <switch> with lower case on purpose? It should be <Switch>
Anyway, I would like to see your code in a code sandbox if it's not the problem
I created the component NotFound and it works fine when I go to a page that doesn't exist. But the same page it's appearing in all my pages, not only the one that doesn't exist. This is the component:
import React from 'react'
const NotFound = () =>
<div>
<h3>404 page not found</h3>
<p>We are sorry but the page you are looking for does not exist.</p>
</div>
export default NotFound
And this is how I used it in the main page:
class MainSite extends Component {
render () {
return (
<div>
{/* Render nav */}
<Route path='/dashboard' component={Nav} />
<Route path='/retrospectives' component={Nav} />
<Route path='/users' component={Nav} />
<Route path='/projects' component={Nav} />
{/* Dashboard page */}
<ProtectedRoute exact path='/dashboard' component={DashboardPage} />
{/* Retrospectives page */}
<ProtectedRoute exact path='/retrospectives' component={RetrospectivesPage} />
{/* Users page */}
<ProtectedRoute exact path='/users' component={UsersPage} />
{/* Projects page */}
<ProtectedRoute exact path='/projects' component={ProjectsPage} />
{/* Retrospective related pages */}
<Route exact path='/retrospectives/:retrospectiveId' component={Retrospective} />
<Route exact path='/join-retrospective' component={JoinRetrospective} />
<ProtectedRoute exact path='/create-retrospective/:retrospectiveId' component={Retrospective} />
{/* OnBoarding pages */}
<ProtectedRoute exact path='/beta-code' component={BetaCodeAccess} />
<Route exact path='/auth-handler' component={AuthHandler} />
<Route exact path='/join-organization' component={JoinOrganization} />
</div>
)
}
}
export default MainSite
As you can see I use <Route path="*" component={NotFound} /> to create the 404 pages, but that component is appearing in every existing page as well. How can I fix this?
Try this one:
import { Switch, Route } from 'react-router-dom';
<Switch>
<Route path='/dashboard' component={Nav} />
<Route path='/retrospectives' component={Nav} />
<Route path='/users' component={Nav} />
<Route path='/projects' component={Nav} />
<Route path="" component={NotFound} />
</Switch>
All below example works fine:
<Route path="" component={NotFound} /> // empty ""
<Route path="*" component={NotFound} /> // star *
<Route component={NotFound} /> // without path
Or if you want to return a simple 404 message without any component:
<Route component={() => (<div>404 Not found </div>)} />
For those who are looking for an answer using react-router-dom v6, many things had changed. Switch for example doesn't exists anymore, you have to use element instead of component, ... Check this little example to get you an idea:
import React from 'react'
import ReactDOM from 'react-dom'
import { BrowserRouter as Router, Routes, Route } from 'react-router-dom'
import './index.css'
import App from './App'
const Test = () => (
<h1>404</h1>
)
ReactDOM.render(
<React.StrictMode>
<Router>
<Routes>
<Route path='/' element={<App />} />
<Route path='*' element={<Test />}/>
</Routes>
</Router>
</React.StrictMode>,
document.getElementById('root')
)
With this you are defining your home route and all the other routes will show 404. Check the official guide for more info.
Try This:
import React from "react";
import { Redirect, Route, Switch, BrowserRouter } from 'react-router-dom';
import HomePage from './pages/HomePage.jsx';
import NotFoundPage from './NotFoundPage.jsx';
class App extends React.Component {
render(){
return(
<BrowserRouter>
<Switch>
<Route exact path='/' component={HomePage} />
<Route path="*" component={NotFoundPage} />
</Switch>
</BrowserRouter>
)
}
}
export default App;
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
Simply import Switch from react-router-dom and wrap all your Routes in the Switch Component. Also Important here is to note to keep your 404Page component at the very bottom(just before your switch ending tag) This way it will match each component with its route first. If it matches, it will render the component or else check the next one. Ultimately if none matching routes will be founded, it will render 404Page
react router is a headache for new coders. Use this code format. This is class component but you can make a functional component and use it.
import React from "react";
import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
import HomePage from './pages/HomePage.jsx';
import NotFoundPage from './NotFoundPage.jsx';
import Footer from './Footer';
class App extends React.Component {
render(){
return(
<Router>
<Routes>
<Route exact path='/' element={HomePage} />
<Route path="*" element={NotFoundPage} />
</Routes>
<Routes>
<Route path="/" element={Footer}/>
</Routes>
</Router>
)
}
}
export default App;
I have the following routes
import React from 'react'
import { IndexRoute, Route } from 'react-router'
import RootComponent from './containers/RootComponent'
import BaseLayout from './components/BaseLayout'
import AuthenticatedLayout from './components/AuthenticatedLayout'
import Auth from './containers/Auth'
import Dashboard from './containers/Dashboard'
import Inbox from './containers/Inbox'
import Schedule from './containers/Schedule'
export default (
<Route path='/' component={BaseLayout}>
<Route path='auth' component={Auth} />
<Route component={AuthenticatedLayout}>
<Route path="dashboard" component={Dashboard} />
<Route path='Inbox' component={Inbox} />
</Route>
</Route>
)
Questions:
When I visit "/", AuthenticatedLayout and Dashboard doesn't appear.
How can I fix this?
Is react-router supposed to be used like this?
EDIT:
I tried changing <Route path="dashboard" component={Dashboard} /> to <IndexRoute component={Dashboard} />. Same result.
If you want Dashboard to appear by default you should add Dashboard in as an IndexRoute instead of assigning it a path. If you would like /dashboard to also direct to Dashboard you can use a Redirect.
I solved the problem with the following routes:
import React from 'react'
import { IndexRoute, Route } from 'react-router'
import RootComponent from './containers/RootComponent'
import BaseLayout from './components/BaseLayout'
import AuthenticatedLayout from './components/AuthenticatedLayout'
import Auth from './containers/Auth'
import Dashboard from './containers/Dashboard'
import Inbox from './containers/Inbox'
import Schedule from './containers/Schedule'
import NotFound from './components/NotFound'
export default (
<Route component={BaseLayout}>
<Route path='auth' component={Auth} />
<Route component={AuthenticatedLayout}>
<Route path='/' component={Dashboard} />
<Route path='inbox' component={Inbox} />
</Route>
<Route path='*' component={NotFound} />
</Route>
)