Search an element in 2D Matrix

gistfile1.txt

function linerSearch (matrix2D, target) {
  for (i =0; i < matrix2D.length; i++){
    for(j=0; j< matrix2D[i].length; j++){
//       console.log(matrix2D[i][j])
      if(matrix2D[i][j] == target) {
        return console.log([i, j])
      }
    }
  }
  return console.log([-1, -1])
}

let matrix2D = [ [1,2,3],
               [4,5,6],
               [7,8,9] ]
linerSearch(matrix2D, 7)
/*Time Complexity: O (N * M),
  N is the number of rows and
  M is the number of columns.
Auxiliary Space: O(1) */