Function dfs

javascript/0130-surrounded-regions.js:49–64

(board, row, rows, col, cols)

};

const dfs = (board, row, rows, col, cols) => {
    const isBaseCase = board[row][col] !== 'O';
    if (isBaseCase) return;

    board[row][col] = '*';

    for (const [_row, _col] of getNeighbors(row, rows, col, cols)) {
        dfs(
            board,
            _row,
            rows,
            _col,
            cols,
        ); /* Time O(HEIGHT) | Space O(HEIGHT) */
    }
};

var getNeighbors = (row, rows, col, cols) =>
    [