//Sorting for dates (uk format)

function dt_add_type_uk_date() {

  jQuery.fn.dataTableExt.aTypes.unshift(

    function ( sData )

    {

      if (sData.match(/(0[1-9]|[12][0-9]|3[01])\/(0[1-9]|1[012])\/(19|20|21)\d\d/))

      {

        return 'uk_date';

      }

      return null;

    }

  );

  jQuery.fn.dataTableExt.oSort['uk_date-asc']  = function(a,b) {

    var re = /(\d{2}\/\d{2}\/\d{4})/;

    a.match(re);

    var ukDatea = RegExp.$1.split("/");

    b.match(re);

    var ukDateb = RegExp.$1.split("/");

    var x = (ukDatea[2] + ukDatea[1] + ukDatea[0]) * 1;

    var y = (ukDateb[2] + ukDateb[1] + ukDateb[0]) * 1;

    return ((x < y) ? -1 : ((x > y) ?  1 : 0));

  };

  jQuery.fn.dataTableExt.oSort['uk_date-desc'] = function(a,b) {

    var re = /(\d{2}\/\d{2}\/\d{4})/;

    a.match(re);

    var ukDatea = RegExp.$1.split("/");

    b.match(re);

    var ukDateb = RegExp.$1.split("/");

    var x = (ukDatea[2] + ukDatea[1] + ukDatea[0]) * 1;

    var y = (ukDateb[2] + ukDateb[1] + ukDateb[0]) * 1;

    return ((x < y) ? 1 : ((x > y) ?  -1 : 0));

  };

}

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