mongodb: number of collections in database - native driver

Question

I'm using the mongodb native driver v3.2.3 and trying to query how many collections are in the current database. I thought it would be

db.listCollections()

But this does not appear to return a count.

Answer 1

You can get the collection count of a database via the stats method:

let stats = await db.stats();
console.log(stats.collections);