Initial App.js file - Managing Application state without Redux

App.js

import React from "react";
import "./App.scss";
import ChildComponent from "./ChildComponent";

const App = () => {
  return (
      <>
        <div className="app">
          <h2>Welcome to React!</h2>
        </div>
        <ChildComponent />
      </>
  );
};

export default App;