Deleting Documents

In this section, we will see how to remove the documents from a collection. To delete one or more documents from a collection, we have to use one of the various delete functions provided by MongoDB. Each of these functions has different behaviors and purposes. To delete documents from a collection, we have to use one of the delete functions and provide a query condition to specify which documents should be deleted. Let's take a look at this in detail.

Deleting Using deleteOne()

As the name suggests, the function deleteOne() is used to delete a single document from a collection. It accepts a document representing a query condition. Upon successful execution, it returns a document containing the total number of documents deleted (represented by the field deletedCount) and whether the operation was confirmed (given by the field acknowledged). However, as the method deletes only one document, the value of deletedCount is always one. If the given query condition...