estimatedDocumentCount()

MongoDB Driver Function Reference

Returns the count of all documents in a collection or view.
More information can be found in the corresponding entry of the MongoDB Manual.

<collection>.estimatedDocumentCount([<options>]])

Arguments

<collection>		The target collection.
<options>		A BOSN document specifying options.

Options

{ maxTime: <long> }

maxTime

The maximum amount of time to allow the count to run.

Return Value

Returns a result set (cursor).

Example

db.employees.estimatedDocumentCount({ salary: { $gt: 700000 }});

Returns the number of documents in the employees collection.