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const jsid JSID_VOID; const JS::HandleId JSID_VOIDHANDLE; // Added in SpiderMonkey 31
JSID_VOID does not occur in JS scripts but may be used to indicate the absence of a valid
jsid. A void
jsid is not a valid id and only arises as an exceptional API return value, such as in
JS_NextProperty. Embeddings must not pass
JSID_VOID into JSAPI entry points expecting a jsid and do not need to handle
JSID_VOID in hooks receiving a jsid except when explicitly noted in the API contract.
JSID_VOIDHANDLE is the handle to the
jsid which value is