chosen update not working after ajax response

[kowalskitPhp]

I have some issue with jquery chosen (ver 1.5.1). In my laravel project I have view with modal. In view is select with alreay some list. User using modal with form, can add position to the table from which I wanna update select list and update chosen. My code: View:

<div class="form-group row">
        <label class="col-3 text-right" for="car">Klient: <a href="/car/create" data-toggle="modal" data-target="#myModal" data-whatever="">(Add car)</a></label>
        <div class="col-9">
            {!! Form::select('cari', $car, null, ['class'=>'form-control form-control-sm form-control-chosen', 'id' => 'client', 'placeholder' => 'Chose car']) !!}
            {!! $errors->first('cari', '<strong><p style="color:red;" class="help-block">:message</p></strong>') !!}
            <script type="text/javascript">
                $("#client").chosen({
                    no_results_text: 'Missing sorry.',
                });
            </script>
        </div>
    </div>
<div class="modal fade bd-example-modal-lg" id="myModal">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header">
                    <h4 class="modal-title">add new car:</h4>
                    <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span>
                    </button>
                </div>
                <div class="modal-body">
                    <div class="row">
                        <div class="col response-client">

                        </div>
                    </div>
                    @csrf
                    <div class="form-group {{ $errors->has('car') ? 'has-error' : ''}}">
                        <label for="exampleFormControlFile1">car danem: </label>
                        <input class="form-control form-control-sm" name="car" type="text" id="newcar">
                        {!! $errors->first('car', '<strong><p style="color:red;" class="help-block">:message</p></strong>') !!}
                    </div>
</div>
                    <button type="submit" id="add-car" class="btn btn-primary btn-sm">{{ __('save') }}<i class="icon-floppy"></i></button>
       </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default btn-sm" data-dismiss="modal">Cancel</button>
                </div>
            </div>
        </div>    

script code:

   $('#add-car').click(function(){
       var car = $('#newcar').val();                                    

      $.ajax({
     url:"{{ url('cars/carNew') }}",
     method:"POST",
   data:{car:car, _token:"{{ csrf_token() }}"},

     success:function(result)
     {
      if(result.result > 0)
       {
              NewCar();
       }
       else
       {
            $("#msg").html("Error can't add new car!");
            $("#msg").fadeOut(2000);
       }
      },
      error:function(xhr)
      {
           console.log(xhr.responseText);
      }
     })                                 

   });

                                function NewCar()
                                {                                    
                                    $('#myModal').modal('hide');
                                    $('.modal-backdrop').remove();
                                    $('#client').empty();                                   

                                    $.ajax({
                                        url:"{{ url('umowy/klienci') }}",
                                        method:"POST",
                                        data:{ _token:"{{ csrf_token() }}"},

                                        success:function(result)
                                        {
                                            $("#client").append('<option>Chose car</option>');
                                            if(result)
                                            {
                                                $.each(result,function(key,value){
                                                    $('#client').append($("<option/>", {
                                                        value: key,
                                                        text: value
                                                    }));
                                                });
                                            }

                                            $('#client').trigger('chosen:updated');                                         

                                        },
                                        error:function(xhr)
                                        {
                                            console.log(xhr.responseText);
                                        }

                                    });

                                }
                            });

Everything works very well except that $('#client').trigger('chosen:updated');. Nothing happen no errors. I'm not sure if I'm doing everything right? Sorry for my english.

[AbdullahKhdir]

do try to call the trigger function in the each loop when you append the option to the select.
and try to use as an alternative way as string instead of an object to append your options

success:function(result)
                                        {
                                            $("#client").append('<option>Chose car</option>');
                                            if(result)
                                            {
                                                $.each(result,function(key,value){
                                                    $('#client').append($("<option/>", {
                                                        value: key,
                                                        text: value
                                                    })).trigger('chosen:updated');
                                                });
                                            }                                     
                                        }

see if it works