How to properly unwind my array in mongodb?

@larissa 

To properly unwind an array in MongoDB, you can use the $unwind operator in an aggregation pipeline. Here is an example query that demonstrates how to unwind an array:

1
2
3

db.collection.aggregate([
  { $unwind: "$arrayField" }
])

In this query, replace collection with the name of your collection and arrayField with the name of the field containing the array you want to unwind. The $unwind operator will create a new document for each element in the array, effectively "flattening" the array.

You can also add additional pipeline stages to further manipulate the data after unwinding the array.

Keep in mind that using $unwind can result in an increased number of documents in the output, so it is important to consider the impact on performance and memory usage, especially for large arrays.