Ako spracovať response s odoslaného formulára

Po úpešnom osdoslaní formulára si nechávam posielať data o uspešnom odoslaní cez JSON. A moj problém je v tom že neviem ako ho mám spracovať kedže nejde o mnou napísaní ajax. Používam na button submit class ajax.

<div class="modal fade" id="addFolder" tabindex="-1" role="dialog">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            {form addFolder}
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                    <h4 class="modal-title" id="myModalLabel">{_is.multimedia.addFiles}</h4>
                </div>
                <div class="modal-body">
                    <div class="">
                        <div class="form-group">
                            {label name class => "control-label" /}
                            {input name class => "form-control isRequired"}
                        </div>
                        <div class="form-group">
                            {label project class => "control-label" /}
                            {input project class => "form-control"}
                        </div>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default pull-left strong" data-dismiss="modal">{_is.default.close}</button>
                    <button n:name="submit" class="btn btn-success ajax">
                        {_is.multimedia.addFolder} <span class="glyphicon glyphicon-ok"></span>
                    </button>
                </div>
            {/form}
        </div>
    </div>
</div>

public function createComponentAddFolder()
    {
        $form = $this->multimediaFolderFormFactory->createAddForm($this);

        $form->onSuccess[] = function() {

            if($this->isAjax()){
                $json = Json::encode(1);
                $this->payload->success = $json;
                $this->sendPayload();

            }
        };

        return $form;
    }

V prehliadači po uspešnom odostaní mám object {„success“:„1“} a ten chcem spracovat len neviem príklad ako to dostanem do console.lo()

Neviete niekto poradiť ? Ďakujem

Editoval KristianSubweb (27. 9. 2018 11:54)