datatables.js

$(document).ready( function () {
  $('#demo_table').DataTable({
    "processing": true,
    "serverSide": true,
    "ajax": '{{ route('ajax.posts.index') }}',
    "columns": [
      { "data": "id" },
      { "data": "title" },
      { "data": "user_name" },
      { "data": "comments_num" },
    ]
  });
} );