interface MyConstants { const boolean? ARE_WE_THERE_YET = false; }; interface Node { readonly attribute DOMString? namespaceURI; }; interface MyConstants { const boolean? ARE_WE_THERE_YET = false; }; const boolean? ARE_WE_THERE_YET = false; interface Node { readonly attribute DOMString? namespaceURI; }; readonly attribute DOMString? namespaceURI;