Tern & Node MongoDB Native support - angelozerr/tern.java GitHub Wiki

tern-node-mongodb-native provides the node-mongodb-native Tern plugin which gives a support for the Mongo DB Native NodeJS Driver.

After installing and converting your project as Tern Project, go at Tern project property, click on Tern / Modules item and select the node-mongodb-native tern plugin (ecma5 and node tern plugin must be selected too) :

Check Node Plugin

After that you can benefit with Mongo DB Native NodeJS Driver completion :

MongoDB Native Completion