| A | C | F | N | P | S | T | W |
| aoInherit | aoStatic | |
| aoReadOnly | aoStringifier |
| ctBoolean | ctInfinity | ctNull |
| ctEmptyArray | ctInteger | ctString |
| ctEmptyObject | ctNan | |
| ctFloat | ctNegInfinity |
| foCallBack | foGetter | foStatic |
| foConstructor | foLegacyCaller | foStringifier |
| foDeleter | foSetter |
| NameToWebIDLBaseType |
| paRead | paStringifier | paWrite |
| sdDictionary | skArray | stFrozenArray |
| sdInterface | skFunction | stObservableArray |
| sdNamespace | skObject | stSequence |
| sdUnknown | skSingle |