If the identifier can be successfully resolved as a variable, the result is
returned as a Uint8Array. If the identifier references a known variable, but
an error occurs in resolving it, the error is returned as a string.
Otherwise, the identifier is not recognized as a variable, and this method
simply returns false.
If the identifier can be successfully resolved as a variable, the result is returned as a Uint8Array. If the identifier references a known variable, but an error occurs in resolving it, the error is returned as a string. Otherwise, the identifier is not recognized as a variable, and this method simply returns
false.