Exporting Custom Modules

customModules.js

var EventEmitter = require('events').EventEmitter;
var util = require('util');

var Person = function(name) {
	this.name = name;
};

util.inherits(Person, EventEmitter);
/* module.exports = Person;  ->  object returned by the require export.
  we could export this, move it to a separate file then require it as a separate module..
  e.g. var Person = require("./lib/Person");
*/

// We can also use this person object to create more people...
var ben = new Person("Ben Franklin");
var Mary = new Person("Mary Nyamor");

// We can also wire up listeners on these other instances
Mary.on('speak', function(said) {
  // we'll log what Mary said..
	console.log(`${this.name} -> ${said}`);

});

/* Another person listener..
  now we have used our person object to create another instances of Person.
  That means that we can use this person object over and over again in all of 
  our files because of the common JS module pattern (in the case of module.exports);
 */
ben.on('speak', function(said) {
	console.log(`${this.name}: ${said}`);

});


ben.emit('speak', "You may delay, but time will not.");
Mary.emit('speak', "It is far better to be alone, than to be in bad company.");