Search Dropdown - jQuery

<select name="vehicle_no" id="vehicle_no" class="form-control select" >

  <option value="" >Select Vehicle</option>

     <?php //echo $vchVehicleNumber;exit;?>

          @foreach($vehiclesData as $data)

             <option {{(isset($vchVehicleNumber) && $vchVehicleNumber == $data['vehicleno'])?'selected':''}} value="{{ $data['vehicleno'] }}" >{{ $data['vehicleno'] }}</option>   

          @endforeach

</select>

// jQuery:-

you have to add CDN of select2 jquery

$("#vehicle_no").select2({

  minimumResultsForSearch: Infinity

});

$('#vehicle_no').select2({

   minimumInputLength: 0 

});