Magic Matrices

function magicMatrices(arrOfarr) {
    let isMagic = true;
    let firstSum = arrOfarr[0].reduce((a, b) => a + b);
    arrOfarr.forEach(row => {
        if (row.reduce((a, b) => a + b) !== firstSum) {
            isMagic = false;
        }
    })
    if (isMagic) {
        for (let col = 0; col < arrOfarr[0].length; col++) {
            let sum = 0;
            arrOfarr.forEach(row => {
                sum += row[col];
            })
            if (sum !== firstSum) {
                isMagic = false;
                break;
            }
        }
    }

    console.log(isMagic);
}