Remove only one document?

[abeboparebop]

The .remove() command in mongojs does not seem to obey the Mongo spec in removing only one document. The following is from the Mongo documentation:

The following operation deletes a single document from the bios collection where the turing field equals true:

db.bios.remove( { turing: true }, 1 )

but this doesn't seem to be properly implemented in mongojs -- instead, all documents that match the query are deleted.

(I also can't find any documentation for what the callback function in .remove() returns for "value." I'm interpreting it as the number of documents that matched the condition and were deleted.)