求大佬指点哈！js 重组数据的一些问题，十分感谢

Question

求助_(:3⌒ﾞ)_现在后台返回的数据是这样的：selected=['FREQUENT_PURCHASE','HIGH_CONSUME','NO_COMMUNICATE','DRIVE_RECORDER','SMART_LOCK','CHILD_MACHINE','FACE_RECS'];但是我想要的是selectd={userTag:['FREQUENT_PURCHASE','HIGH_CONSUME'],communicationIntention：'NO_COMMUNICATE',products:['DRIVE_RECORDER','SMART_LOCK','CHILD_MACHINE'],cloudServices:['FACE_RECS'],}怎么根据下面的数据去重组？？data={"CLOUD_SERVICE":[{"code":"CLOUD_STORE","msg":"云存储"},{"code":"FACE_RECS","msg":"人脸识别"},{"code":"WARN_CALL","msg":"电话报警"},{"code":"HUMAN_CHECK","msg":"人形检测"},{"code":"SERVICE_NEARLY_EXP","msg":"服务快到期"}],"HAVE_PRODUCT":[{"code":"CAMERA","msg":"摄像机"},{"code":"SMART_LOCK","msg":"xxxx"},{"code":"CAT_EYE","msg":"xxxxx"},{"code":"SUIT","msg":"套装"},{"code":"SMART_CURTAIN","msg":"xxxx"},{"code":"HW_VIDEO_RECORDER","msg":"硬盘录像机"},{"code":"SENSE_WARN","msg":"传感报警"},{"code":"CHILD_MACHINE","msg":"儿童机器人"},{"code":"DRIVE_RECORDER","msg":"行车记录仪"},{"code":"SPORT_CAMERA","msg":"运动相机"},{"code":"NETWORK","msg":"网络通讯"},{"code":"CAR_GOODS","msg":"汽车用品"},{"code":"PARTS","msg":"配件"},{"code":"SERVICE_PRODUCT","msg":"服务产品"},{"code":"SAAS_APP","msg":"SaaS应用"},{"code":"SMART_STORE","msg":"智能存储"}],"USER_TAGS":[{"code":"FREQUENT_PURCHASE","msg":"购买频繁"},{"code":"SMART_HOME_USER","msg":"xx家居用户"},{"code":"MONITOR_USER","msg":"xx专业户"},{"code":"NO_DEVICE","msg":"无设备用户"},{"code":"INSTABLE_DEVICE","msg":"设备不稳定"},{"code":"HIGH_ACTIVITY","msg":"活跃度高"},{"code":"HIGH_CONSUME","msg":"高消费能力"},{"code":"HOME_USER","msg":"家庭用户"},{"code":"ENTERPRISE_USER","msg":"企业用户"}],"COMMUNICATE_INTENTION":[{"code":"HAVE_INTENTION","msg":"有意向"},{"code":"NO_COMMUNICATE","msg":"没有沟通过"},{"code":"NON_INTENTION","msg":"无意向"},{"code":"GET_DEAL","msg":"达成购买"}]}

Answer 1

像FREQUENT_PURCHASE这样的串，首先你要获取到它是data中的哪一类。可以遍历一遍data生成一个映射表typeMap：{CLOUD_STORE:'CLOUD_SERVICE',FACE_RECS:'CLOUD_SERVICE',CAMERA:'HAVE_PRODUCT',//...}你想要的selected，可以先初始化：lettargetSelected={userTag:[],communicationIntention:[],//...}这里有个小问题是targetSelected与data中的键不一致，但是一一对应，所以你要么写个函数，要么写个映射表,可以根据data中的key得到targetSelected中的key：functiongetKey(src){if(src=='CLOUD_SERVICE')return'cloudServices'//...}这样，对于后端返回的数组selected中的每一项，分发到targetSelected即可。selected.forEach(type=>{letkey=typeMap[type]targetSelected[getKey(src)].push(type)})其实很简单，但最好的方式后端直接返回规范的数据，如果实在不行再用上面的办法。