// YOUR CODE BELOW
ticTacToe = {
    board: [[null, null, null],
            [null, null, null],
            [null, null, null]],

    // methods
    move(side, row, col) {
        if (this.board[row][col] === null) this.board[row][col] = side;
        console.log(this.board);
        return this.board;
     },

    clear() {
        this.board = [  [null, null, null],
                        [null, null, null],
                        [null, null, null]];
        return this.board;
    }
}