Accessing properties of an object

There are two ways to access a property of an object. One way is with dot syntax:

var booktitle:String = eas2book.title;

and the other way is with a string index (treating the object as what's called an associative array):

var booktitle:String = eas2book["title"];

The former is more compact; the latter is useful when properties are to be accessed with a variable representation or in a loop, eg:

var field:String = "title";

var booktitle:String = eas2book[field];

trace(booktitle);  // Essential Actionscript 2.0

I'll repeat that because it's important to remember:

Accessing properties of an object

There are two ways to access a property in an object. One is with dot syntax:

eas2book.title;

and the other is with a string index:

eas2book["title"];