In AS2, your example would of course work but only because the Flash Player
would create a temporary String object with your string literal, then get the
object's length property and return the value, and then delete the temporary
String object it created. So yes, all method calls and get/set on property
values would work just fine on literals in AS2, but only because Flash Player
used to create temporary objects and delete them as soon as the operation ended.
Thus, when you needed to call multiple methods on a string for exemple, it was
more efficient to explicitely create a new instance of the String object and
call those methods on the object rather that just calling those methods on a
string literal.
But it seems that this is no longer true in AS3, that String objects and string
literals are now treated the same by Flash Player 9 using AS3 (there are no
more implicit temporary String objects created by the Flash Player).
Anyone knows if that is the case?
----- Original Message ----
From: T. Michael Keesey <[EMAIL PROTECTED]>
To: flashcoders@chattyfig.figleaf.com
Sent: Monday, April 30, 2007 11:45:13 AM
Subject: Re: [Flashcoders] Are string literals and String objects the same in
AS3?
On 4/30/07, David Bellerive <[EMAIL PROTECTED]> wrote:
>
> From what I understand, in AS2, a String object was a wrapper object around a
> string literal. For exemple, in AS2, these were not the same:
>
> var myFirstString:String = "my first string";
> var mySecondString:String = new String("my second string");
>
> The first line (the string literal) was just that, a literal value with no
> properties or methods.
Not true. As a counterexample, try this:
trace("Hello".length);
// Traces "5".
--
Mike Keesey
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