How to add Rowspan in JQuery datatables

Question

Im using Jquery datatables to construct a table.
My requirement is like below

This is not a static table, and we are rendering it using json data.
Here

Answer 1

Datatables does not support this kind of grouping out of the box. But, as in many cases, there is a plugin available.

It is called RowsGroup and is located here: Datatables Forums. A live example is also included.

If you change the JS part in this example to the below you will have your desired output presented to you in the output window.

$(document).ready( function () {
  var data = [
    ['1', 'David', 'Maths', '80'],
    ['1', 'David', 'Physics', '90'],
    ['1', 'David', 'Computers', '70'],
    ['2', 'Alex', 'Maths', '80'],
    ['2', 'Alex', 'Physics', '70'],
    ['2', 'Alex', 'Computers', '90'],
  ];
  var table = $('#example').DataTable({
    columns: [
        {
            name: 'first',
            title: 'ID',
        },
        {
            name: 'second',
            title: 'Name',
        },
        {
            title: 'Subject',
        }, 
        {
            title: 'Marks',
        },
    ],
    data: data,
    rowsGroup: [
      'first:name',
      'second:name'
    ],
    pageLength: '20',
    });
} );

Here is a screenshot of the result: