Tern & Node Express support - angelozerr/tern.java GitHub Wiki
tern-node-express provides the node-express Tern plugin which gives a support for express web application framework for node support.
After installing and converting your project as Tern Project, go at Tern project property, click on Tern / Modules item and select the node-express tern plugin (ecma5 and node tern plugin must be selected too) :
After that you can benefit with express web application framework for node support completion :