ticTacToe_JS

function myFunc(coords) {
    let field = [
        [false, false, false],
        [false, false, false],
        [false, false, false],
    ];

    let currentPlayer = "X";
    while (coords.length > 0) {
        let [row, col] = coords.shift().split(" ");
        row = Number(row);
        col = Number(col);

        if (
            isNaN(row) ||
            isNaN(col) ||
            row < 0 ||
            row >= field.length ||
            col < 0 ||
            col >= field.length
        ) {
            continue;
        }

        if (field[row][col]) {
            console.log("This place is already taken. Please choose another!");
            continue;
        }
        field[row][col] = currentPlayer;

        if (
            [
                checkRow(row, field),
                checkCol(col, field, currentPlayer),
                checkDiagonals(field),
            ].some((v) => v === true)
        ) {
            console.log(`Player ${currentPlayer} wins!`);

            for (let row = 0; row < field.length; row++) {
                console.log(field[row].join("\t"));
            }
            return;
        }
        if (!field.flat().includes(false)) {
            console.log("The game ended! Nobody wins :(");
            for (let row = 0; row < field.length; row++) {
                console.log(field[row].join("\t"));
            }
            return;
        }
        currentPlayer = currentPlayer === "X" ? "O" : "X";
    }

    function checkRow(row, field) {
        let currentRow = new Set(field[row]);
        return currentRow.size == 1 && !currentRow.has(false);
    }

    function checkCol(col, field, currentPlayer) {
        let currentCol = new Set();
        for (let row = 0; row < field.length; row++) {
            if (
                field[row][col] === false ||
                field[row][col] !== currentPlayer
            ) {
                return false;
            }
        }
        return true;
    }

    function checkDiagonals(field) {
        let diagonal1 = new Set();
        let diagonal2 = new Set();
        for (let row = 0; row < field.length; row++) {
            diagonal1.add(field[row][row]);
            diagonal2.add(field[row][field.length - 1 - row]);
        }

        if (
            (diagonal1.size === 1 && !diagonal1.has(false)) ||
            (diagonal2.size === 1 && !diagonal2.has(false))
        ) {
            return true;
        }
        return false;
    }
}

// myFunc(["0 0", "1 1", "0 1", "1 2", "0 2", "2 2", "1 2", "2 2", "2 1"]);

// myFunc(["0 0", "0 1", "0 2", "1 1", "2 0", "2 1", "1 2", "2 2", "2 1"]);

myFunc(["0 2", "0 1", "1 1", "0 0", "2 0", "2 1", "1 2", "2 2", "2 1"]);