## Some code
```javascript
import React, { useState, useEffect } from "react";
import "./App.css";
import { shuffleDeck, getCardValue, calculateScore } from "./utils";
function App() {
const [deck, setDeck] = useState([]);
const [dealerCards, setDealerCards] = useState([]);
const [playerCards, setPlayerCards] = useState([]);
const [playerScore, setPlayerScore] = useState(0);
const [dealerScore, setDealerScore] = useState(0);
const [gameStatus, setGameStatus] = useState("start");
const [score, setScore] = useState(0);
useEffect(() => {
setDeck(shuffleDeck());
}, []);
useEffect(() => {
setPlayerScore(calculateScore(playerCards));
}, [playerCards]);
useEffect(() => {
setDealerScore(calculateScore(dealerCards));
}, [dealerCards]);
const startGame = () => {
setDealerCards([deck[0], deck[2]]);
setPlayerCards([deck[1], deck[3]]);
setDeck(deck.slice(4));
setGameStatus("inProgress");
};
const hit = () => {
setPlayerCards([...playerCards, deck[0]]);
setDeck(deck.slice(1));
};
const stand = () => {
while (dealerScore < 17) {
setDealerCards([...dealerCards, deck[0]]);
setDeck(deck.slice(1));
}
if (dealerScore > 21 || dealerScore < playerScore) {
setScore(score + 1);
} else if (dealerScore > playerScore) {
setScore(score - 1);
}
setGameStatus("gameOver");
};
const reset = () => {
setDealerCards([]);
setPlayerCards([]);
setPlayerScore(0);
setDealerScore(0);
setGameStatus("start");
};
return (
<div className="App">
<h1>Blackjack</h1>
{gameStatus === "start" && (
<button onClick={startGame}>Start Game</button>
)}
{gameStatus === "inProgress" && (
<>
<h2>Dealer's Hand:</h2>
{dealerCards.map((card, index) => (
<div key={index} className="card">
{card}
</div>
))}
<h2>Your Hand:</h2>
{playerCards.map((card, index) => (
<div key={index} className="card">
{card}
</div>
))}
<div>
<button onClick={hit}>Hit</button>
<button onClick={stand}>Stand</button>
</div>
</>
)}
{gameStatus === "gameOver" && (
<>
<h2>Dealer's Hand:</h2>
{dealerCards.map((card, index) => (
<div key={index} className="card">
{card}
</div>
))}
<h2>Your Hand:</h2>
{playerCards.map((card, index) => (
<div key={index} className="card">
{card}
</div>
))}
<h2>{dealerScore > 21 || dealerScore < playerScore ? "You win!" : "You lose!"}</h2>
<h2>Score: {score}</h2>
<button onClick={reset}>Play Again</button>
</>
)}
```