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Why do my props not work in grandchild component?

Tried to transfer data from 2 components to one using the same method, but it is working only for 50%. There are 3 documents: App.js, Hort.js, Hord.js. Transfering from app.js to hort.js is working, but from hord.js to hort.js isn't. What could be the reason?
App.js:
import React from 'react'
import Hort from './Hort'
function App(props) {
const text1 = 'check1'
return (
<Hort test1={text1} />
);
}
export default App;
Hord.js:
import React from 'react'
import Hort from './Hort'
function Hord(props) {
const text2 = 'check2'
return (
<Hort test2={text2} />
);
}
export default Hord;
Hort.js:
import React from 'react'
import App from './App'
import Hord from './Hord'
function Hort(props) {
return (
<div>
<h1>Just {props.test1}</h1>
<h2>Just {props.test2}</h2>
</div>
)
}
export default Hort;

You are never rendering <Hord>, if a component is never rendered, it won't render what's inside it.
In your index.js, you probably have code that looks like this:
import { StrictMode } from "react";
import ReactDOM from "react-dom";
import App from "./App";
const rootElement = document.getElementById("root");
ReactDOM.render(
<StrictMode>
<App />
</StrictMode>,
rootElement
);
This code indicates that the <App> component will get rendered in the root element from your index.html.
So starting from the <App> component, you can build your component tree, because you never call <Hord>, it will never render, nor will the components rendered inside <Hord>.
Render <Hord> inside your <App> component.
import React from 'react'
import Hort from './Hort'
import Hord from './Hord'
function App(props) {
const text1 = 'check1'
return (
<Hort test1={text1} />
<Hord />
);
}
export default App;
As mentioned in the comments, you shouldn't import components that could cause infinite loops.
import React from 'react'
// * removed imports
function Hort(props) {
return (
<div>
<h1>Just {props.test1}</h1>
<h2>Just {props.test2}</h2>
</div>
)
}
export default Hort;

React child components do not render

Im new to react and am currently trying to render some components.
My problem is that only the parent Component is being rendered.
I also have child Components but react doesnt seem to recognize them?
This is my index where I am importing my App component.
import ReactDom from 'react-dom';
import React from 'react';
import App from './app';
function BuildApp() {
return (
<App />
);
}
ReactDom.render(<BuildApp />, document.body);
Here is my App component.
import React from 'react';
import Container from './components/bootstrap-components/Container';
import TopInfo from './components/TopInfo/TopInfo';
export default function App() {
return (
<Container>
<TopInfo />
</Container>
);
}
The only thing my App Component renders is Container Component not the TopInfo.
If I remove the Container component and only have TopInfo, React will render TopInfo.

Refer to React children.
function Container(props) {
return (
<div>
{props.chilidren}
</div>
);
}

Reactjs How i can pass props from index.html to App component with Typescript

Hello i want to pass props from index.html to App.tsx as you see i'm using typescript. so i want to do it with typescript.
my code
//index.html
<div id="root" name="test"></div> //props name test
//Index.tsx
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';
var container =document.getElementById('root');
ReactDOM.render(
<App name={container.getAttribute('name')} />
,
container
);
serviceWorker.unregister();
//i'm sorry i should have provided this my knowledge about typescript is very low
//App.tsx
import React from 'react';
import logo from './logo.svg';
import './App.css';
class App extends React.Component {
render(){
return (
<div className="App">
<p>{this.props.name}</p>
</div>
)
}
}
export default App;

You should add props to your App component constructor:
class App extends React.Component {
constructor(props) {
super(props);
}
render(){

React component not rendering

Embarrassing question, but here we go.
I have a layout.js file that is supposed to render out my React components.
Layout.j:s
import React, { Component } from 'react'
import MainNavbar from './Navbar'
import AddButton from './AddButton'
export default class Layout extends Component {
render() {
return (
<div>
<Navbar />
<AddButton />
</div>
)
}
}
The Navbar component works fine, but my AddButton wont display at all. I've tried console.log-ging from it and nothing gets outputted in the console. So I guess my problem has to do with my component not getting linked.
Here's the file that won't get displayed:
AddButton.js:
import React, { Component } from 'react'
import { Button } from 'react-bootstrap'
export default class AddButton extends Component {
render() {
console.log('hejsan')
return (
<div>
helloooooo
</div>
)
}
}
Here is the index.js file:
index.js
import React, { Component } from 'react'
import ReactDOM from 'react-dom'
import './index.css'
import Layout from './components/Navbar'
const app = document.getElementById('root')
ReactDOM.render(<Layout />, app)
I bet my problem is super basic, but I have no idea how to resolve this.
Thanks for reading!

So the mistake is very basic, you have imported Layout from Navbar which is nothing but your Navbar component and hence only Navbar is rendered, rather you should have imported it from Layout.js
import React, { Component } from 'react'
import ReactDOM from 'react-dom'
import './index.css'
import Layout from './components/Layout'
const app = document.getElementById('root')
ReactDOM.render(<Layout />, app)
Also in Layout.js change
import MainNavbar from './Navbar'
to
import Navbar from './Navbar'

'render' is not defined when running create react app

When I am using create react app when compliling I get the following errors ./src/Grid.js
"Line 3: Your render method should have return statement" and "Line 5: 'render' is not defined"
this is the contents of the the Grid.js file
import React, { Component } from 'react';
class Grid extends Component {
render(){
return <p>Hello, World</p>;
}
}
export default Grid;
I can't see that is wrong here? any help appreciated
import React, { Component } from 'react';
import Grid from './Grid.js';
class App extends Component
{
render()
{
return(
<div>
<Grid />
</div>
);
}
}
export default App;
This is where I am using the component
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(<App />, document.getElementById('root'));
registerServiceWorker();
Where ReactDOM render is used

You are missing import {render} from 'react-dom';.

It should be:
import React, { Component } from 'react';
class Grid extends Component {
render(){
return(<p>Hello, World</p>);
}
}
export default Grid;
The above quote no longer applies.
I tried your exact code for Grid.js and App.js from the question and it works well on my machine. Whatever reason why your thing isn't working isn't in your Grid.js or App.js.

Still no real explanation for this. Copying the component code in to a newly created file compiles correctly. Very strange indeed.