Update Mongoose

[graydi...@gmail.com]

Hello,

I am new to the forum. I write because i have a problem when i run the update. 

                       Utenti.updateOne({ username: 'GreyDiamond' }, { online: true, token: token }, function(err, res) {

                           if(err){

                               console.log("error update");

                           }else{

                               console.log("update ok");

                           }

                         });

If the user "GreyDiamond" has already the field "token" with the value, with this updateOne, does not override the value, but append the new value on the old value.  Can anyone tell me why? Thanks 

[graydi...@gmail.com]

I have solved. thanks a lot