Question

How do you rename fields in the $project stage?

Answer 1

To rename fields in the $project stage in MongoDB, use { $project: { newFieldName: "$oldFieldName" } } syntax.

Step-by-step explanation:

To rename fields in the $project stage in MongoDB, you can use the following syntax:

{ $project: { newFieldName: "$oldFieldName" } }

For example, if you want to rename the 'name' field to 'fullName', you can use:

{ $project: { fullName: "$name" } }

Make sure to adjust the field names according to your specific use case.