gistfile1.js

// Module definition

// inject <~~ that's how you declare a module file injectable for Injector

exports.YourModule = function () {
  return function () {
    console.log('in my injectable module');
  };
};

///////////////////////////////////////////////////////////

// Somewhere else in your codebase, another module

// inject

exports.AnotherModule = function (YourModule) { // <~~ The magic happens right there
  YourModule(); // <~~ outputs "in my injectable module"
};