Sampling from a MongoDB database?

Question

MongoDB

Good afternoon, I just started working with this database and there was a problem with the selection

Db.collection("xxx").findOne({ user: xxx, password: yyy },{title: 1}, (err, result) => {}

I expect only the title field in the response, but I get everything, what's wrong?

Answer 1

the fields to be selected must be in the options object in the projection property
mongodb.github.io/node-mongodb-native/3.0/api/Coll...