Overview of built-in classes 115
Overview of built-in classes
This section lists all the ActionScript classes, including a brief description of each class and cross-
references to other relevant sections of the documentation.
Core classes
The core ActionScript classes are those borrowed directly from ECMAScript. In the Actions
toolbox, these classes are located in the Built-in Classes > Core subfolder.
Class Description
Arguments An array that contains the values that were passed as parameters to any
function. See the Arguments class entry in Chapter 12, “ActionScript
Dictionary,” on page 205.
Array The Array class contains methods and properties for working with array
objects. See the Array class entry in Chapter 12, “ActionScript Dictionary,”
on page 205.
Boolean The Boolean class is a wrapper for Boolean (
true or false) values. See the
Boolean class entry in Chapter 12, “ActionScript Dictionary,” on page 205.
Button The Button class provides methods and properties for working with button
objects. See the Button class entry in Chapter 12, “ActionScript Dictionary,”
on page 205.
Date The Date class provides access to date and time values relative to universal
time (Greenwich Mean Time) or relative to the operating system on which
Flash Player is running. See the Date class entry in Chapter 12, “ActionScript
Dictionary,” on page 205.
Error The Error class contains information about errors that occur in your scripts.
You typically use the
throw statement to generate an error condition, which you
can then handle using a
try..catch..finally statement. See
try..catch..finally and the Error class entries in Chapter 12, “ActionScript
Dictionary,” on page 205.
Function The Function class is the class representation of all ActionScript functions,
including those native to ActionScript and those that you define. See the
Function class entry in Chapter 12, “ActionScript Dictionary,” on page 205.
Math The Math class lets you access and manipulate mathematical constants and
functions. All of the properties and methods of the Math class are static, and
must be called with the syntax
Math.method(parameter) or Math.constant. See
the Math class entry in Chapter 12, “ActionScript Dictionary,” on page 205.
Number The Number class is a wrapper for the primitive number data type. See the
Number class entry in Chapter 12, “ActionScript Dictionary,” on page 205.
Object The Object class is at the root of the ActionScript class hierarchy; all other
classes inherit its methods and properties. See the Object class entry in
Chapter 12, “ActionScript Dictionary,” on page 205.
String The String class is a wrapper for the string primitive data type, which allows you
to use the methods and properties of the String object to manipulate primitive
string value types. See the String class entry in Chapter 12, “ActionScript
Dictionary,” on page 205.
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