.then(potatoList => {
const potatoListView = new PotatoListView({
collection: potatoList,
initialScrollPosition: this.scrollPosition,
persistScrollPosition: (position) => { this.scrollPosition = position; }
});
RootRegion.show(potatoListView);
});
.then(potatoModel => {
const potatoDetailView = new PotatoDetailView({model: potatoModel});
RootRegion.show(potatoDetailView);
});