hapi : include a js custom library

In my index.js file I would like to load an external js library where I store functions. In the long run I would make it a module, but right now I need to get things prototyped. It's not part of node so I can't put it into node_modules. What's the command?

I have index.js and I have functions.js in the same folder.

An explanation of how node loads modules via require is found here

You have to specify a path (relative or absolute) to the file you want to include by starting the path with / or ./

var functions = require("./functions");