append data to selection form using ajax

append data to selection form

$.ajax({
        url: '../example.php',
        type: 'post',
        data: {},
        success: function( data, textStatus, jQxhr ){
           	// console.log(data);
           	var itemID = <?php echo json_encode($item_id); ?>;
           	// console.log(itemID);
        	$.each(data['data'], function(key, value) {
		     	$('select#select_item').append($("<option></option>").attr("value",key).text(value)).trigger('change');
		      	if(itemID){
		      		$.each(itemID, function(id, item) {
			      		if(key == item){
			      			$('select#select_item option[value="'+item+'"]').prop("selected", true);
			      		}
			      	});
		      	}
			});
        },
        error: function( jqXhr, textStatus, errorThrown ){
            console.log( errorThrown );
        }
    });