文本框实现下拉列表联动

 $(‘#searchOption‘).keyup(function(){
                var val = $(‘#searchOption‘).val()
                
                $("#editable-select option").remove()

                ITEMS=  ["Alfa Romeo",    "Audi",    "BMW",    "Citroen",    "Fiat",    "Ford",    "Jaguar",    "Jeep",    "Lancia",    "Land Rover",    "Mercedes",    "Mini",    "Nissan",    "Opel",    "Peugeot",    "Porsche",    "Renault"]
                $.each(ITEMS, function(i, item) {
                    console.log(item+"-"+val+"-"+item.indexOf(val))
                    if(item.indexOf(val) != -1){
                        $(‘#editable-select‘).append(‘<option value="">‘+ item + ‘</option>‘);
                    }
                    
                })