我怎样才能使用mongoose从集合的所有文件中删除指定的字段？

我想从使用mongoose的用户集合的所有文件中删除关键“passwrod”，是否有可能使用$ unset做到这一点？

{ "_id" : ObjectId("58ec890c91b2b612084fd827"), "username" : "zain", "passwrod" : 123, "password" : 8 }, { "_id" : ObjectId("58ec8918364116187845948d"), "username" : "bob", "password" : 123, "passwrod" : 12 } 

Answer 1

文件：

 { "_id" : ObjectId("58ec890c91b2b612084fd827"), "username" : "zain", "passwrod" : 123, "password" : 8 } { "_id" : ObjectId("58ec8918364116187845948d"), "username" : "bob", "password" : 123, "passwrod" : 12 } 

查询：

 db.collection.updateMany({}, {$unset:{"passwrod":1}}) 

结果：

 { "_id" : ObjectId("58ec890c91b2b612084fd827"), "username" : "zain", "password" : 8 } { "_id" : ObjectId("58ec8918364116187845948d"), "username" : "bob", "password" : 123 }