A simple implementation of Javascript to create classes and dynamically add properties and methods

function MyClass()
{ 
  //This function is same as a constructer 
  alert("New Object Created"); 
}
//Creating Object 
var MyObject = new MyClass (); 
NewObject.prototype = 
{ 
  //Adding Method named "MyMethod" 
  MyMethod: function(){alert("My Method");} , 
   
  //Adding property named "MyProperty" 
  MyProperty: "My Property" 
}
  
//Calling Method 
MyObject.MyMethod(); 
  
//Assigning Property 
MyObject.MyProperty = "My Property Value changed";