What is the reason for Mongoose to instantly update the database when a property is modified instead of waiting for save()?

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Mongoose is designed to allow real-time data manipulation in the database, which is why it instantly updates the database when a property is modified. This feature is especially important in applications that require real-time updates or to support multi-user collaboration. When Mongoose detects a change in a model property, it immediately sends the update query to the database, keeping everything in sync in real-time. This eliminates the need for developers to manually call the save() method to make changes persistent in the database.