Alexander Staubo <alex@mop.no> writes:

This works:

<!--#var "_.len(objectValues('Folder'))"-->

Note that this won't automagically include folder-like products or Z Classes descended from Object Manager. There's no objectValues() that has isinstance() behaviour (yet). So if you have any such objects, the most convenient way to do it right now is:

<!--#var "_.len(objectValues(['Folder', 'MyFolderType']))"-->

Note that I belive if you create a 'Base' ZClass with Meta Type 'myBaseClass' and you derive 'Sub' ZClasses from myBaseClass, but don't specify a meta type, then the subclasses will inherit the common meta type. Not quite as flexible as an isinstance() method, but could be handy. -Michel