Inserts a new row of cells before the specified row, using the given cells.
- macOS 10.0+
The location at which to insert the new row.
row is greater than the number of rows in the receiver, enough rows are created to expand the receiver to be
row rows high.
new should either be empty or contain a sufficient number of cells to fill each new row. If
nil or an array with no elements, the call is equivalent to calling
insert. Extra cells are ignored, unless the matrix is empty. In that case, a matrix is created with one row and enough columns for all the elements of
This method redraws the receiver. Your code may need to send
size after sending this method to resize the receiver to fit the newly added cells.