👐 Unset Fields from Results

$unset

We can remove fields from the results, either using $project or more fine-grained, using $unset. If we don't want the attributes we can do:

Atlas UI

[
    {$unset: "attributes"}
]

MongoDB Shell

db.books.aggregate([
      {$unset: "attributes"}
])

👐 Remove from results the fields totalInventory and available.

Answer

Atlas UI

Several ways to do this, other than using $project:

[
    {$unset: "totalInventory"},
    {$unset: "available"},
]

// or

[
    {$unset: ["totalInventory", "available"] },
]

MongoDB Shell

db.books.aggregate([
    {$unset: "totalInventory"},
    {$unset: "available"},
])

// or

db.books.aggregate([
    {$unset: ["totalInventory", "available"] },
])

info

$set is an alias for $addFields that you'll find on many older posts and documentation.