WebScript Changes
In WebObjects 3.5, WebScript would always evaluate both sides of an "&&" or "||" expression. In WebObjects 4, these expressions are short-circuited, so that only the left side is evaluated unless evaluation of the right side is necessary in order to determine the result. For example: (YES || <this will NOT evaluate>)(NO || <this will evaluate>)
(YES && <this will evaluate>)
(NO && <this will NOT evaluate>)
To aid in the debugging process, WebObjects 4 has a WebScript 3.5 compatibility mode. This mode is controlled by a method in WOApplication named requiresWOF35Scripting . By default, this method returns NO; override it to return YES to get backward compatibility.
© 1999 Apple Computer, Inc. – (Last Updated 19 Oct 99)
