小编Kan*_*rre的帖子

因此，在我的 MEAN 堆栈应用程序中更改文件和移动代码之后，我终于将它加载到 Heroku 本地。现在的问题是当我将此应用程序推送到我的 Heroku 遥控器并要求打开 Heroku 时，该应用程序出现此错误....

加载资源失败：服务器响应状态为 503（服务不可用）

下面是 Heroku 上应用程序的链接……有什么可以帮助或暗示我正确方向的吗？

https://istressless.herokuapp.com/

我有一个具有多个属性的JavaScript对象,这些属性的值是一个项目数组(type,count,senderUserName).

我想组合这些具有相同类型的数组中的项目,同时保留它们最初对应的键.

这是我的数组对象的示例:

{C.J :[
  {"type":"call","count":2,"senderUserName":"C.J.Rosati"},   
  {"type":"email","count":0,"senderUserName":"C.J.Rosati"},
  {"type":"sms","count":1,"senderUserName":"C.J.Rosati"},
  {"type":"sms","count":0,"senderUserName":"C.J.Rosati"},
  {"type":"email","count":6,"senderUserName":"C.J.Rosati"}
],
Will :[
  {"type":"call","count":2,"senderUserName":"Will"},   
  {"type":"email","count":1,"senderUserName":"Will"},
  {"type":"sms","count":0,"senderUserName":"Will"},
  {"type":"call","count":1,"senderUserName":"Will"},
  {"type":"call","count":1,"senderUserName":"Will"},
]}

我想要的结果是:

{C.J :[
  {"type":"call","count":2,"senderUserName":"C.J.Rosati"},   
  {"type":"email","count":6,"senderUserName":"C.J.Rosati"},
  {"type":"sms","count":1,"senderUserName":"C.J.Rosati"}
],
Will :[
  {"type":"call","count":4,"senderUserName":"Will"},   
  {"type":"email","count":1,"senderUserName":"Will"},
  {"type":"sms","count":0,"senderUserName":"Will"},
]}

我一直在玩lodash方法来获得我的结果,但没有任何运气.我想我可能需要使用的组合_.map和_.reduce,但不知道如何将它们适当地组合.