Diagonals Attack

function diagonalsAttack(matrixRows) {
    let matrix = matrixRows.map(
        row => row.split(' ').map(Number));

    let sumFirstDiagonal = 0;
    for (var i = 0; i < matrix.length; i++) {
        sumFirstDiagonal = sumFirstDiagonal + matrix[i][i];
    }
    let sumSecondDiagonal = 0;
    for (var j = 0; j < matrix.length; j++) {
        sumSecondDiagonal = sumSecondDiagonal + matrix[j][matrix.length-1-j];
    }

    if (sumFirstDiagonal == sumSecondDiagonal){
        for (var q = 0; q < matrix.length; q++) {
            for (var z = 0; z < matrix.length; z++) {
                if(matrix[q][z] != sumSecondDiagonal && matrix[q][z] != matrix[q][q] &&
                    matrix[q][z] != matrix[q][matrix.length-q-1])  {
                    matrix[q][z] = sumFirstDiagonal;
                }
            }
        }
        printMatrix(matrix);
    }
    else
    {
        printMatrix(matrix);
    }

    function printMatrix(matrix) {
        for (var i = 0; i < matrix.length; i++) {
            console.log(matrix[i].join(' '))
        }
    }
}
diagonalsAttack(['5 3 12 3 1',
    '11 4 23 2 5',
    '101 12 3 21 10',
    '1 4 5 2 2',
    '5 22 33 11 1']

);