Code review for my sample React application

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I have implemented a sample react application for adding Todos. Can someone please review my code?

Index.html

<!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" />
    <!--
      Notice the use of %PUBLIC_URL% in the tags above.
      It will be replaced with the URL of the `public` folder during the build.
      Only files inside the `public` folder can be referenced from the HTML.

Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
      work correctly both with client-side routing and a non-root public URL.
      Learn how to configure a non-root public URL by running `npm run build`.
    -->
    <title>React App</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>

<div id="mytodos"></div>
   
    <!--
      This HTML file is a template.
      If you open it directly in the browser, you will see an empty page.

You can add webfonts, meta tags, or analytics to this file.
      The build step will place the bundled scripts into the <body> tag.

To begin the development, run `npm start` or `yarn start`.
      To create a production bundle, use `npm run build` or `yarn build`.
    -->
  </body>
</html>

MyTodos.js

import React from 'react';
import ReactDOM from 'react-dom';
import logo from './logo.svg';
import './App.css';

class MyTodoList extends React.Component {
    constructor(props) {
      super(props);
      this.state = {value: '',itemsList: []};
 
      this.handleChange = this.handleChange.bind(this);
      this.handleSubmit = this.handleSubmit.bind(this);
    }
 
    handleChange(event) {
     
      console.log("event.target.value"+event.target.value);
      this.setState({value: event.target.value});
       // this.setState({value: this.state.itemsList.concat( event.target.value)});
    }
 
    handleSubmit(event) {

console.log("this.state.value"+this.state.value);
     
      this.setState({itemsList: this.state.itemsList.concat( this.state.value)});

event.preventDefault();
    }
 
    render() {
      return (
        <form onSubmit={this.handleSubmit}>
        <h1>My Todo section</h1>
          <label>
            Name:
            <input type="text" value={this.state.value} onChange={this.handleChange} />
          </label>
          <input type="submit" value="Submit" />
          <MyTodos data={this.state}/>
        </form>
       
      );
    }
  }

class MyTodos extends React.Component {
 
    render() {
 
      console.log("hello");
   
 //console.log(" state retrieved -> "+ this.state.itemsList) ;
var itemsList=  this.props.data.itemsList;
var itemsListHtmlContent= " ";
if(this.props.data)
//debugger;
console.log("this.props.data.itemsList->"+ this.props.data.itemsList);
console.log("itemsListt->"+ itemsList);
//console.log("this.props.itemsList->"+ this.props.itemsList);

for (var i = 0; i < itemsList.length; i++) {

itemsListHtmlContent=itemsListHtmlContent.concat(itemsList[i]+"     "+'<br /> ');
}
console.log("itemsListHtmlContent"+itemsListHtmlContent);

console.log("itemsListHtmlContent"+itemsListHtmlContent);
      return (
        <div>
         <h1> MyTodo List</h1>

{itemsListHtmlContent}

</div>
 
      );
    }
 
   
  }

ReactDOM.render(
    <MyTodoList />,
    document.getElementById('mytodos')
  );

Thanks

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