AS3 : Dynamic classes

A dynamic class defines an object that can be altered at run time by adding or changing properties and methods. A class that is not dynamic, such as the String class, is a sealed class. You cannot add properties or methods to a sealed class at run time.

You create dynamic classes by using the dynamic attribute when you declare a class. For example, the following code creates a dynamic class named "DynamicClass".

Code : /*Main.as*/

package
{
 import flash.display.Sprite;

 public class Main extends Sprite
 {
  public function DynamicClassCode()
  {
   var dClass:DynamicClass = new DynamicClass();

   dClass.age = 25; // Dynamically add new variable.
   // Dynamically add new Method.
   dClass.getDetails = function():void 
   {
    trace(dClass.nama);
    trace(dClass.age);
   }
   
   dClass.getDetails(); // Method call
  }
 }
}

dynamic class DynamicClass
{
 public var nama:String = "Abdul";
}