How to get a specific embedded document inside a MongoDB collection? [duplicate]

Answer 1

You can use $ or $elemMatch. The $ operator and the $elemMatch operator project a subset of elements from an array based on a condition.

The $elemMatch projection operator takes an explicit condition argument. This allows you to project based on a condition not in the query.

db.collection.find(
    {
        // 
    },
    {
        notes: {
            $elemMatch: {
                title: 'Hello MongoDB'
            }
        },
        name: 1
    }
)

The $ operator projects the array elements based on some condition from the query statement.

db.collection.find(
    {
        'notes.title': 'Hello MongoDB'
    },
    {
        'notes.title.$': 1,
         name: 1
    }
)