cobiwave

/* 
  Diagonal Difference Solution.
  sample matrix = [[1,2,3], [4,5,6], [7,8,9]]
*/ 
function diagonalDifference(matrix) {
   // length of input matrix.
    const length = matrix.length;
    let diagonal1 = 0, diagonal2 = 0;
  
    // Looping through the array and summing the diagonals.