clear-selectize-control-on-click.js

( function ( $ ) {
    $( document ).ready( function () {


        $body.find( 'select' ).each( function () {
            var $select = $( this ).selectize();

            // Clear selected items from selectize control on dropdown click
            $( '#loadProject .selectize-control' ).on( 'click', function () {
                var selectize = $select[0].selectize;
                selectize.clear(true);
            });
        } );


    });
}( jQuery ) );

Is not working, just write a white block instead the item.