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body { // 10 token | 112 CSS tokens | 796 tokens in total
font: 14px "Century Gothic", Futura, sans-serif;
margin: 20px;
}
ol, ul { // 8 tokens
padding-left: 30px;
}
.board-row:after { // 14 tokens
clear: both;
content: "";
display: table;
}
.status { // 6 tokens
margin-bottom: 10px;
}
.square { // 41 tokens
background: #fff;
border: 1px solid #999;
float: left;
font-size: 24px;
font-weight: bold;
line-height: 34px;
height: 34px;
margin-right: -1px;
margin-top: -1px;
padding: 0;
text-align: center;
width: 34px;
}
.square:focus { // 8 tokens
outline: none;
}
.kbd-navigation .square:focus { // 9 tokens
background: #ddd;
}
.game { // 9 tokens
display: flex;
flex-direction: row;
}
.game-info { // 7 tokens
margin-left: 20px;
}
function Square(props) { // 33 tokens | JSX tokens: 684
return (
<button className="square" onClick={props.onClick}>
{props.value}
</button>
);
}
class Board extends React.Component { // 166 tokens
renderSquare(i) {
return (
<Square
value={this.props.squares[i]}
onClick={() => this.props.onClick(i)}
/>
);
}
render() { // 119 tokens
return (
<div>
<div className="board-row">
{this.renderSquare(0)}
{this.renderSquare(1)}
{this.renderSquare(2)}
</div>
<div className="board-row">
{this.renderSquare(3)}
{this.renderSquare(4)}
{this.renderSquare(5)}
</div>
<div className="board-row">
{this.renderSquare(6)}
{this.renderSquare(7)}
{this.renderSquare(8)}
</div>
</div>
);
}
} // 1
class Game extends React.Component { // 372 tokens
constructor(props) {
super(props);
this.state = {
history: [
{
squares: Array(9).fill(null)
}
],
stepNumber: 0,
xIsNext: true
};
}
handleClick(i) { // 117 tokens
const history = this.state.history.slice(0, this.state.stepNumber + 1);
const current = history[history.length - 1];
const squares = current.squares.slice();
if (calculateWinner(squares) || squares[i]) {
return;
}
squares[i] = this.state.xIsNext ? "X" : "O";
this.setState({
history: history.concat([
{
squares: squares
}
]),
stepNumber: history.length,
xIsNext: !this.state.xIsNext
});
}
jumpTo(step) { // 25 tokens
this.setState({
stepNumber: step,
xIsNext: (step % 2) === 0
});
}
render() { // 183 tokens
const history = this.state.history;
const current = history[this.state.stepNumber];
const winner = calculateWinner(current.squares);
const moves = history.map((step, move) => {
const desc = move ?
'Go to move #' + move :
'Go to game start';
return (
<li key={move}>
<button onClick={() => this.jumpTo(move)}>{desc}</button>
</li>
);
});
let status;
if (winner) {
status = "Winner: " + winner;
} else {
status = "Next player: " + (this.state.xIsNext ? "X" : "O");
}
return (
<div className="game">
<div className="game-board">
<Board
squares={current.squares}
onClick={i => this.handleClick(i)}
/>
</div>
<div className="game-info">
<div>{status}</div>
<ol>{moves}</ol>
</div>
</div>
);
}
} // 1
ReactDOM.render(<Game />, document.getElementById("root")); // 17 tokens
function calculateWinner(squares) { // 146 tokens
const lines = [
[0, 1, 2],
[3, 4, 5],
[6, 7, 8],
[0, 3, 6],
[1, 4, 7],
[2, 5, 8],
[0, 4, 8],
[2, 4, 6]
];
for (let i = 0; i < lines.length; i++) {
const [a, b, c] = lines[i];
if (squares[a] && squares[a] === squares[b] && squares[a] === squares[c]) {
return squares[a];
}
}
return null;
}