interface Dictionary { readonly attribute unsigned long propertyCount; getter float (DOMString propertyName); setter void (DOMString propertyName, float propertyValue); }; interface Dictionary { readonly attribute unsigned long propertyCount; getter float (DOMString propertyName); setter void (DOMString propertyName, float propertyValue); }; readonly attribute unsigned long propertyCount; getter float (DOMString propertyName); setter void (DOMString propertyName, float propertyValue);