magic-matrix

function checkMagic(matrix) {

    function sumRow(row) {
        return row.reduce((a, b) => a + b);

    }

    const transposedMatrix = matrix.map((col, i) => matrix.map(row => row[i]));

    const firstRowSum = sumRow(matrix[0]);
    let magickMatrix = true;

    for (let i = 0; i < matrix.length; i++) {
        if (sumRow(matrix[i]) !== firstRowSum || sumRow(transposedMatrix[i]) !== firstRowSum) {
            magickMatrix = false;
            break;
        }
    }

    console.log(magickMatrix)

}