public render(): void {

    const element: React.ReactElement<IFaqProps > = React.createElement(
      Faq,
      {
        description: this.properties.description,
        items :  this._getListData()

        /*[{Question:"question",Reponse:"response", Categorie :{Title : "SharePoint"} , Langue:"fr"},
        {Question:"question",Reponse:"response", Categorie :{Title : "OnDrive"} , Langue:"fr"}]*/
        //this._getFacItems()

      }
    );

    ReactDom.render(element, this.domElement);
  }

public _getListData() :Promise <IExampleItem[]> {

  return sp.web.lists.getByTitle("FAQ_List").items
    .select("Question", "Reponse","Categorie/Title", "Langue")
    .expand("Categorie")
    .get()
    .then((response) => {

      return response;
    });

   }