How to concatenate static value in data table in ajax

To concatenate a static value in a DataTable using Ajax, you can modify the data returned from the server before it is rendered on the client-side. Here's an example code snippet to illustrate how to do this:

$(document).ready(function() {
    $('#my_datatable').DataTable({
        ajax: '/my-controller/get-data',
        columns: [
            { data: 'id' },
            { 
                data: 'some_column',
                render: function(data, type, full, meta) {
                    return data + ' static value';
                }
            }
        ]
    });
});

In this example, we define the "columns" array for the DataTable, including the column that we want to concatenate a static value to. We use the "render" function to modify the data for each row of the table. The "render" function takes four parameters:

"data" - the data for the current cell
"type" - the type of rendering required ('display', 'filter', 'sort', or 'type')
"full" - the full data source for the row
"meta" - the column meta data
In the "render" function, we concatenate the static value to the "some_column" value for each row, and return the concatenated value. The DataTable will then display this concatenated value in the table.

Note that this method only modifies the data on the client-side, and does not modify the actual data that is returned from the server. If you need to modify the data on the server-side before it is returned to the client, you can use a server-side scripting language like PHP or Node.js to concatenate the static value.