javascript - Update specific values in a nested array within mongo through mongoose -

i have following schema(without _id) -

 {uid: string,  inbox:[{msgid:string, someval:string}]  } 

now, in request msgid , use in following mongoose query this-

 my_model.findone({'inbox.msgid':'msgidvaluexyz'}   , function(err, doc) {                console.log(doc);     return !0; }) 

now, problem whole document has specific message along other messages in inbox -

   output-    {uid:'xyz',     inbox:[      {msgid:,someval},      {msgid:'our queried msgid',someval}, //required sub array      {msgid:,someval},       ]        } 

now query can use specific sub array document inbox large looped through.

use $ positional selection operator have returned doc include matched inbox element:

my_model.findone({'inbox.msgid':'msgidvaluexyz'}   , {'inbox.$': 1}   , function(err, doc) {                console.log(doc);     return !0; })