MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual page 793

In this example, you create a function that needs two pieces of information, or parameters, to
do its job: and . When you call the function to create new instances of the object, you pass
t d
it the parameters. The following code creates instances of the object Biker called and
emma
, and it traces the speed of the instance, using the method from the
hamish emma getSpeed()
previous ActionScript:
emma = new Biker(30, 5);
hamish = new Biker(40, 5);
trace(emma.getSpeed()); // traces 6
In object-oriented scripting, classes can receive properties and methods from each other
according to a specific order, which is called inheritance. You can use inheritance to extend or
redefine the properties and methods of a class. A class that inherits from another class is called
a subclass. A class that passes properties and methods to another class is called a superclass. A
class can be both a subclass and a superclass.
An object is a complex data type containing zero or more properties and methods. Each
property, like a variable, has a name and a value. Properties are attached to the object and
contain values that can be changed and retrieved. These values can be of any data type: String,
Number, Boolean, Object, MovieClip, or undefined. The following properties are of various
data types:
customer.name = "Jane Doe";
customer.age = 30;
customer.member = true;
customer.account.currentRecord = 609;
customer.mcInstanceName._visible = true;
The property of an object can also be an object. In line 4 of the previous example, is
account
a property of the object and is a property of the object .
customer, currentRecord account
The data type of the property is Number.
currentRecord
About ActionScript 1.0 793