select2 add option
// Set the value, creating a new option if necessary if ($('#mySelect2').find("option[value='" + data.id + "']").length) { $('#mySelect2').val(data.id).trigger('change'); } else { // Create a DOM Option and pre-select by default var newOption = new Option(data.text, data.id, true, true); // Append it to the select $('#mySelect2').append(newOption).trigger('change'); }