ProjectStage.$project property

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ProjectStage.$project property

MongoDB projection specification.

Can contain: - Inclusion: { field: 1 } - include this field - Exclusion: { field: 0 } - exclude this field - Field reference: { newField: '$existingField' } - rename/reference field - Operators: { field: { $concat: [...] } } - computed values

Note: Cannot mix inclusion and exclusion (except for _id which can always be explicitly excluded)

Signature:

$project: Projection<T>;