Module Pattern learning design patterns https://app.pluralsight.com/player?course=javascript-practical-design-patterns&author=jonathan-mills&name=javascript-practical-design-patterns-m3&clip=9&mode=live

main.js

var Task = require('./task');
var Repo = require('./taskRepository');

var task1 = new Task(Repo.get(1));

var task2 = new Task({name: 'create a demo for modules'});
var task3 = new Task({name: 'create a demo for singletons'});
var task4 = new Task({name: 'create a demo for prototypes'});

task1.complete();
task2.save();
task3.save();
task4.save();

task.js

var Repo = require('./taskRepository');

var Task = function(data){
	this.name=data.name;
	this.completed=false;
}

Task.prototype.complete = function () {
	console.log('completing task: ' + this.name);
	this.completed=true;
};

Task.prototype.save=function(){
	console.log('saving Task: ' + this.name);
	Repo.save(this);
};

module.exports = Task;

taskRepository.js

var repo = function(){

	var db = {};

	var get = function(id){
		console.log('Getting task ' + id);
		return {
			name: 'new task from db'
		}
	};

	var save = function(task){
		console.log('Saving ' + task.name + ' to the db'); 
	};

	return {
		get: get, 
		save: save
	}
}

module.exports = repo();