DOM 3 Core defines the DOMStringList interface [1], which has some
similarities to HTML 5's DOMTokenList interface. In fact,
DOMStringList basically provides a subset of DOMTokenList's
functionality. But there is a mismatch in the names of the
DOMTokenList.has and DOMTokenList.contains methods (which seem to have
the same purpose).
I think DOMTokenList.has should be renamed to DOMTokenList.contains,
to match DOMStringList.
Perhaps some relationship between these two interfaces should be
defined as well (though that would obviously introduce a dependency on
DOM 3 Core).
-Adam
[1]
http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#DOMStringList
