db.collectionNames doesn't work in Node.js

Question

I want to check if a collection exist in Node.js. I use the db.collectionNames to get the names list in the db but nothing happened. The code:

connectDB(DBUR         


        

Answer 1

Are you using >2.0 version of the driver?

If so, you will need to use listCollections instead - this is one of the changes in the update from 1.x

Something like:

db.listCollections().toArray(function(err, collections){
    //collections = [{"name": "coll1"}, {"name": "coll2"}]
});