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checkforwinner.js
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checkforwinner.js
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export const checkForWinner = (symbol, gameArr) => {
// Check rows & columns
for (let i = 0; i < 3; i++) {
if (
gameArr[i][0] === symbol &&
gameArr[i][1] === symbol &&
gameArr[i][2] === symbol
) {
return { symbol, row: i, column: null, diagonal: null };
}
if (
gameArr[0][i] === symbol &&
gameArr[1][i] === symbol &&
gameArr[2][i] === symbol
) {
return { symbol, row: null, column: i, diagonal: null };
}
}
// Check diagonals
if (
gameArr[0][0] === symbol &&
gameArr[1][1] === symbol &&
gameArr[2][2] === symbol
) {
return { symbol, row: null, column: null, diagonal: "left" };
}
if (
gameArr[0][2] === symbol &&
gameArr[1][1] === symbol &&
gameArr[2][0] === symbol
) {
return { symbol, row: null, column: null, diagonal: "right" };
}
// No winner found
return null;
};