Recipe 2.12: Calling Methods Only if They Exist

Last Updated: Sep 8, 2003 Status: Draft

Problem:  

You want to call an attribute or method only if the class or object actually supports it, to avoid "no such attribute or method" errors.

Solution:  

Use CAN:

$obj.foo if $obj.CAN.foo;

MyClass.foo if MyClass.CAN.foo;

Discussion:

Login / Edit User Info

-- Copyright © 2002 Cognitivity --