import React, {useState} from 'react'; import ReactRouter from 'react-router'; import {GameState, useListener} from './GamesUtil'; import './GamePage.css'; import Game from './Game'; function GamePage(props: ReactRouter.RouteComponentProps<{id: string}>) { let [games, setGames] = useState<[string, GameState][]>([]); useListener((newGames) => setGames(newGames)); let game = games.find((game) => game[0] === props.match.params.id) return (