davidnum95

return {
        ...state,
        items: [
          ...state.items,
          action.payload,
        ],

return {
        ...state,
        items: state.items.map((item) => {
          if (item.id === action.payload.id) {
            return {
              ...item,
              name: action.payload.name,
            };
          }
          return item;
        }),
      };