https://datatables.net/examples/plug-ins/dom_sort.html
For number, 1,2, 100,3 when datatable treats them as string, the order will be
1, 100, 2,3. We need to treat them as number and the order asc should be
1,2,3,100. The following is DataTable code for numeric order
/* Create an array with the values of all the input boxes in a column */$.fn.dataTable.ext.order['dom-text'] = function ( settings, col ){ return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) { return $('input', td).val(); } );}/* Create an array with the values of all the input boxes in a column, parsed as numbers */$.fn.dataTable.ext.order['dom-text-numeric'] = function ( settings, col ){ return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) { return $('input', td).val() * 1; } );}/* Create an array with the values of all the select options in a column */$.fn.dataTable.ext.order['dom-select'] = function ( settings, col ){ return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) { return $('select', td).val(); } );}/* Create an array with the values of all the checkboxes in a column */$.fn.dataTable.ext.order['dom-checkbox'] = function ( settings, col ){ return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) { return $('input', td).prop('checked') ? '1' : '0'; } );}/* Initialise the table with the required column ordering data types */$(document).ready(function() { $('#example').DataTable( { "columns": [ null, { "orderDataType": "dom-text-numeric" }, { "orderDataType": "dom-text", type: 'string' }, { "orderDataType": "dom-select" } ] } );} );