9. Magic Matrices

function magicMatrices(matrix) {
    let allSums = [];

    let sumRow = 0;
    let sumCol = 0;

    for (let row = 0; row < matrix.length; row++) {
        sumRow = 0;
        sumCol = 0;
        for (let col = 0; col < matrix[row].length; col++) {
            sumRow += matrix[row][col];
            sumCol += matrix[col][row];
        }
        allSums.push(sumRow);
        allSums.push(sumCol);
    }
    let isMagical = allSums.every(s => s === allSums[0]);

    return isMagical;
}