Question

How to calculate total number of documents in MongoDB?

I’m working with a MongoDB collection and need to find out the total number of documents it contains. What is the most efficient way to count the documents in a MongoDB collection? Should I use the count() method or the newer countDocuments() method? Also, are there any performance considerations or differences I should be aware of when using these methods on large datasets?

Answer 1

You can use countDocuments() method.

Definition:
The countDocuments() method is used to count the total number of documents in a collection that matches a specified query. It provides an efficient way to retrieve the document count.

Syntax:

db.collection.countDocuments(query, options)