Using Variables And Methods In React.Js

import React, { Component } from 'react';
import ReactDOM from 'react-dom'

class Message extends Component {
    message = "Hello world";

    getMessage() {
        return "Hello world from method";
    }

    render() {
        return (
            <table>
                <tr>
                    <td>
                        {this.message}
                    </td>
                </tr>
                <tr>
                    <td>
                        {this.getMessage()}
                    </td>
                </tr>
            </table>);
    }

}
ReactDOM.render(<Message/>, document.getElementById('root'));

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