I followed facebook's tutorial to learn react. I used npm create-react-app to create a react app. Html files are in a folder called public . JS and CSS files are in a folder called src.
This is my index.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>React App</title>
</head>
<body>
Link
<div id="root"></div>
</body>
</html>
This is my index.js:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
ReactDOM.render(
<App name="Sumanth Jois"/>,
document.getElementById('root')
);
index.html works fine . <App/> is being rendered on to the screen.I have another file which login.html.
This is login.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>React App</title>
</head>
<body>
<div id="app"></div>
</body>
</html>
This is my login.js :
import React from 'react';
import ReactDOM from 'react-dom';
ReactDOM.render(
<App name="Sumanth Jois"/>,
document.getElementById('app')
);
But this time login.html is display nothing it's empty. Can somebody please tell me where I am going wrong? I am stuck with this for hours now.
Related
I am trying to display a simple form using react but I get the error "Target container is not a DOM element" despite the fact that the root element is definitely a DOM element as I have check using console.
edit : Importing form 'react-dom' and using 'render' works fine but I cannot seem to get it work other wise
Here is the form component
import React from 'react';
export default function StudentForm()
{
return (
<form>
//some stuff
</form>
)
}
My index file
import ReactDOM from 'react-dom/client';
import './index.css';
import StudentForm from './App';
const root = document.getElementById('root');
ReactDOM.createRoot(<StudentForm/>,root);
Here is my index.html file
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
</body>
</html>
I guess you don't have a element with id root in your index.html, please add the following tag in your index.html,
<div id="root" />
try this:
const root = ReactDOM.createRoot(document.getElementById('root'))
root.render(
<React.StrictMode>
<StudentForm />
</React.StrictMode>
)
You need to add your main or index script to HTML.
<div id="root"></div>
<script type="module" src="/src/index.tsx"></script>
https://www.youtube.com/watch?v=NyZzRSTZQ2Y
I follow this video to open an HTML file and JS file in VSC. but I can't render the js file on the web.The hi I am tom hi is not appear on the web.
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script crossorigin src="https://unpkg.com/react#17/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom#17/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/#babel/standalone/babel.min.js"></script>
<title>Random Quote Machine</title>
</head>
<body>
<div id="app"></div>
<script type="text/babel" src="./index.js"> </script>
</body>
</html>
index.js
function App(){
return(
<div> hi I am tom hi </div>
);
}
ReactDom.render(<App/>,document.getElementById("app"))
Update the last line in index.js to:
ReactDOM.render(<App/>,document.getElementById("app"))
and it'll work.
Explanation:
What was wrong in your index.js?
Ans: ReactDOM is an object which is imported from react library to handle the rendering the component. In your code you were accessing ReactDom, note the caps are different, you were referring to ReactDom instead of ReactDOM.
Remember that JavaScript is a case-sensitive language.
This is my html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="root"></div>
<script src="index.js"></script>
</body>
</html>
```
Javascript
import React from "react"
import ReactDOM from "react-dom"
ReactDOM.render(
<h1>Hello, world!</h1>,
document.getElementById('root')
);
The problem is that there are no problems and nothing shows up on the output as wrong. I made sure to save my code and rebooted VS code a bunch of times. I installed all the libraries and was following a tutorial. Then for some reason it isn't working.
On going through multiple DOCs I get to know that index.html file is the entry point for a React application and all the components we load overrides this file. But if I am making changes to the index.html file that is not reflected in the web page. I am working on integrating Zoom SDKs which needs to include script tags inside the index.html or else JQuery errors are thrown to the console.
Contents of my public/index.html file:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<link rel="manifest" href="%PUBLIC_URL%/manifest.json">
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
<link type="text/css" rel="stylesheet" href="https://source.zoom.us/1.7.0/css/bootstrap.css" />
<link type="text/css" rel="stylesheet" href="https://source.zoom.us/1.7.0/css/react-select.css" />
<title>React App</title>
</head>
<body>
<noscript>
You need to enable JavaScript to run this app.
</noscript>
<div id="root"></div>
<script src="https://source.zoom.us/1.7.2/lib/vendor/react.min.js"></script>
<script src="https://source.zoom.us/1.7.2/lib/vendor/react-dom.min.js"></script>
<script src="https://source.zoom.us/1.7.2/lib/vendor/redux.min.js"></script>
<script src="https://source.zoom.us/1.7.2/lib/vendor/redux-thunk.min.js"></script>
<script src="https://source.zoom.us/1.7.2/lib/vendor/jquery.min.js"></script>
<script src="https://source.zoom.us/1.7.2/lib/vendor/lodash.min.js"></script>
<script src="https://source.zoom.us/zoom-meeting-1.7.2.min.js"></script>
</body>
</html>
My index.js configuration:
import React from 'react';
import ReactDOM from 'react-dom';
import {
Redirect,
HashRouter as Router,
Route,
Switch
} from 'react-router-dom';
import { Provider } from 'react-redux';
import { setStore } from './store/base';
import configureStore from './store/configureStore';
import './App.scss';
import MeetingRoom from './containers/MeetingRoom/MeetingRoom';
export const store = configureStore({});
setStore(store);
const routes = (
<Provider store={store}>
<Router>
<Switch>
<Route component={MeetingRoom} path='/m/:mid/' />
</Switch>
</Router>
</Provider>
);
ReactDOM.render(routes, document.getElementById('root'));
If I am changing the text inside <noscript> tag i.e You need to enable JavaScript to run this app. to some other string but it is not getting reflected in the web page. So how my index.html is getting loaded I cannot figure out. Is there any other information I need to provide for getting the solution?
The HTML noscript element defines a section of HTML to be inserted if a script type on the page is unsupported or if scripting is currently turned off in the browser. Add some string inside div element to see on the webpage
I'm attempting to load my second React component into my HTML page but I'm getting the following error:
Uncaught Error: Target container is not a DOM element.
I've attempted other solutions, but I haven't been successful. I started with create-react-app and I did everything the same way as the first component since that's loading up correctly but the second one isn't.
Root file:
SRC file:
My LiteInfo.js file:
import React from 'react';
const LiteInfo = function() {
return (
<div className="LiteInfo">
<h1>Hello</h1>;
</div>
);
}
export default LiteInfo;
and I'm trying to load it in the same way as App.js in index.js file:
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import LiteInfo from './LiteInfo';
import 'bootstrap/dist/css/bootstrap.css';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(<App />, document.getElementById('root'));
console.log(document.getElementById('root'));
ReactDOM.render(<LiteInfo />, document.getElementById('liteInfo'));
console.log(LiteInfo);
registerServiceWorker();
Using console.log shows info, but the error is coming from ReactDOM.render(<LiteInfo />, document.getElementById('liteIndo'));
And lastly, my HTML file which is found in public):
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<title>React App</title>
</head>
<body>
<div id="navbar"></div>
<div id="liteInfo"></div>
<div id="root">
</div>
</body>
</html>
Anyone know what I'm doing wrong?
EDIT