Mootools: includes a hasClass() function:
Prototype: includes a hasClassName() function:
see? :)
However, as you said this library is more then just code, it's art. And this is why I'm emphasizing those new functions: They empower the artist (who does not read the complete docs before getting started) and don't hurt the scientists ....
but *are* they art?
Anyway, interesting discussion and good arguments,
yep! -- Fil, who had nothing to add, in fact