User Guide

Object 995

The following code can then be placed in a FLA file and will function the same way as it does

in the previous examples:

var myBook:Book = new Book();

myBook.bookcount = 5;

trace("You ordered "+myBook.bookcount+" copies of "+myBook.bookname);

See also

get statement, set statement

constructor (Object.constructor property)

public constructor : Object

Reference to the constructor function for a given object instance. The constructor property

is automatically assigned to all objects when they are created using the constructor for the

Object class.

Availability: ActionScript 1.0; Flash Player 5

Example

The following example is a reference to the constructor function for the

myObject object.

var my_str:String = new String("sven");

trace(my_str.constructor == String); //output: true

If you use the instanceof operator, you can also determine if an object belongs to a specified

class:

var my_str:String = new String("sven");

trace(my_str instanceof String); //output: true

However, in the following example the Object.constructor property converts primitive

data types (such as the string literal seen here) into wrapper objects. The

instanceof operator

does not perform any conversion, as seen in the following example:

var my_str:String = "sven";

trace(my_str.constructor == String); //output: true

trace(my_str instanceof String); //output: false