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columns option not the columnDefs as shown in my

Hi @deliator , You could run that check before before you initialise the table, and store the columnDefs in a variable, which you then use at the initialisation. Cheers, Colin

what your goal with columnDefs is but you haven't defined the target columns with columnDefs.targets so it probably isn't

This is one way to resolve the issue: <script> $(document).ready(function() { $('#table_data').dataTable({ "order": [[1, "desc"]], "columnDefs": [{ "targets": 0, "data": "download_link", "render": function (data, type, row, meta) { let url = "{{ url_for('confirmation_page', data='DATA') }}".replace('DATA', data); return '<a href="' + url + '">'+data+'</a>'; } }] })}); </script>

You can't set columnDefs with the initialisation options, but you can set the column options using HTML5 attributes as described here. Allan

If I remove columnDefs, "intl" do nothing. My browser is Chrome 73.

application), i used the columndefs to add buttons to

Using bootstrap classes did the trick for the alignment. Also figured out that the proper code is : "columnDefs": [ { "targets": [ 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ], "className": "text-right" }, { "targets": [1,2,3,4,5,6,7,8,9,10,11,12], "render": function ( data, type, row, meta ) { return type === 'display'? '<input type="checkbox" name="group' + meta.row + '" /> ' + data:data; } } ]

1,2]; var table = $('#example').DataTable({ columnDefs: [{ visible: false, targets: invisibleItems

the report and the columnDefs array that has a