小编sug*_*h_g的帖子

我正在做wes-bos学习节点课程.当我运行npm start时显示 - 找不到模块node-sass.当我尝试运行--npm install node-sass --save时,它会给我以下错误.

我的reducer文件如下.

import { AppConstants } from '../constants';

const initialState = {
  state: [],
  menu_items: [],
  addon_items: [],
  save_items: [],
  un_mapped_menu_items: false,
  error: ''
};

export default (state = initialState, action) => {
 switch (action.type) {
   case AppConstants.getMenuItems:
    return {
     ...state,
   }
   case AppConstants.getMenuItemsSuccess:
    return {
     ...state,
     menu_items: action.menu_items
    }
   case AppConstants.getAddonsItems:
    return {
     ...state,
   }
   case AppConstants.getAddonsItemsSuccess:
    return {
    ...state,
    addon_items: action.addon_items
   }
   case AppConstants.getMenuItemsEdit:
    return {
    ...state,
   }
   case AppConstants.getMenuItemsSave:
    return {
    ...state,
    save_items: action.save_items
   }
   case AppConstants.getUnmappedMenuItems:
    return …