Returns a Foundation object from JSON data in a given stream.
- iOS 5.0+
- macOS 10.7+
- tvOS 9.0+
- watchOS 2.0+
A stream from which to read JSON data.
The stream should be opened and configured.
Options for reading the JSON data and creating the Foundation objects.
For possible values, see
A Foundation object from the JSON data in
The data in the stream must be in one of the 5 supported encodings listed in the JSON specification: UTF-8, UTF-16LE, UTF-16BE, UTF-32LE, UTF-32BE. The data may or may not have a BOM. The most efficient encoding to use for parsing is UTF-8, so if you have a choice in encoding the data passed to this method, use UTF-8.