数据表个别列搜索 select 选项未排序

Question

select 选项未按升序排序，如何将其排序为数字而不是字符串请参见附图

initComplete: function() {
        this.api().columns([0, 1, 2, 3, 4]).every(function() {
            var column = this;
            var select = $('<select onclick="event.stopPropagation()" class="form-select form-select-sm"><option value="">All</option></select>')
                .appendTo($(column.header()))
                .on('change', function() {
                    var val = $.fn.dataTable.util.escapeRegex(
                        $(this).val()
                    );

                    column
                        .search(val ? '^' + val + '$' : '', true, false)
                        .draw();
                });

            column.data().unique().sort().each(function(d, j) {
                if (d != null) {
                    select.append('<option value="' + d + '">' + d + '</option>')
                }
            });
        });
    },