What is the use of colspan and rowspan
rowspan="n" for merging n number of rows colspan="n" for merging n number of columns
like<table> <tr> <td rowspan=2>1</TD> <TD>2</td> </tr> </table> rowspan means merge two row at time using
just think you are making a calculator then we can use rowspan and make it equal to a no. and this number is the no. of cell a row should span. and same goes for colspan.
split the cell at time using rowspan and colspan
help my code does not iterate