import React, { useState } from 'react'; import ReactDOM from 'react-dom'; import './style.css'; import Timer from './components/Timer'; interface Solution { result: string; author: string; } const App: React.FC = () => { const [author, setAuthor] = useState('anonymous'); const [solutions, setSolutions] = useState([]); const registerResult = (result: string) => { setSolutions([...solutions, { author, result }]); } return ( ); }; document.body.style.overflow = 'hidden'; ReactDOM.render(, document.getElementById('root'));