Examples of various OOP-ish type object patterns in Javascript

objectPatterns.js

// Example of constructor pattern
function Person(firstName, lastName){
	this.firstName = firstName;
	this.lastName = lastName;
	
	this.introduceSelf = function(){
		alert('Hello, my name is ' + this.firstName + ' ' + this.lastName + '.');
	}
}

// usage
var me = new Person('Jeremy', 'Stafford');
me.introduceSelf();

// Example of object literal (emulates a public static class)
var MyClass = {
	firstName: 'Jeremy',
    lastName: 'Stafford',
    
    introducePerson: function(person){
         alert('Hello, my name is ' + person.firstName + ' ' + person.lastName + '.');  
    }
}

// usage
var me = new Person('Jeremy', 'Stafford');
MyClass.introducePerson(me);

// Example of Module pattern (emulates a class)
var MyPerson = (function(){
	
	// encapsulated values
	var counter = 0;
	
	// functional object
	return {
		incrementCounter: function(){
			return counter++;
		},
		
		resetCounter: function(){
			alert('Counter was reset');
			counter = 0;
		}
	}
})();

// usage
alert(MyPerson.incrementCounter());


// simplified explanation of modul pattern

var foo = (function(){
	// private members
	var theNumber = 0
	
	function incrementTheNumber(){
		theNumber++;
	};
	
	return {
		// public members
		className: 'foo',
		
		getNext: function(){
			incrementTheNumber();
			return theNumber;
		}
	}
})();