React 项目 详情页获取到的数据渲染不出来

获取到的数据信息外面有个 下标 ，需要在暴露数据时使用 createSelector

 

// selector
export let getGoodDetail = (state) => {
  return state.detail.goodDetail;
};
export let showGoodDetail = createSelector([getGoodDetail], (goodDetail) => {
  return goodDetail.length > 0 ? goodDetail[0] : [];
});