How to count the number of documents in a mongodb collection

Question

I would like to know how to count the number of documents in a collection. I tried the follow

var value = collection.count();
&&
var value = collecti         


        

Answer 1

db.collection.count(function(err,countData){

//you will get the count of number of documents in mongodb collection in the variable 
countdata

});

In place of collection give your mongodb collection name