What does the third parameter in the following mongoose query do?
How you search for name.last in occupation?
The person schema seems to have 2 fields name and occupation. The name is further divided into first and last.The occupation field isn't having any further parts ,that's why person.occupation is returning a string. Had it been divided into further parts then person.occupation would have returned an object.
What would the Person schema look like?
var personSchema = mongoose.Schema({name: { first: String, last: String},occupation: String });