BT.features

returns the current interpreter capability table.

Parameters	Type	Required	Default value	Description
None	-	No	None	No parameters required.

Type	Description
Object	Returns the interpreter capability object. See "Return Object Fields" below for fields.

Field	Type	Must exist	Description
web	Bool	Yes	Whether to have built-in Web service capabilities. The current standard build is `true`.
desktop	Bool	Yes	Whether to enable desktop App capabilities. The CLI build is usually `false` and the bt_app desktop build is `true`.
ffi	Bool	Yes	Whether to build in the native dynamic library FFI. The official BT interpreter is `true`.
net	Bool	Yes	Whether to build in TCP, UDP, WebSocket, DNS and network interface related capabilities.
device	Bool	Yes	Whether to have built-in device communication capabilities. Currently contains serial serial port capabilities.
mysql	Bool	Yes	Whether the MySQL standard library is built-in.
reqwest	Bool	Yes	Whether to build in the HTTP client standard library.
crypto	Bool	Yes	Whether to have built-in encryption digest capabilities such as SHA, HMAC, and UUID.
fs	Bool	Yes	Whether to build the file system standard library.
process	Bool	Yes	Whether to build in child process and process environment related capabilities.
stats	Bool	Yes	Whether to build in `BT.stats()` runtime statistics capability.
bytes	Bool	Yes	Whether to build Bytes binary byte capability.
modbus	Bool	Yes	Whether to have built-in Modbus frame building, parsing and CRC auxiliary capabilities.

desktop will reflect whether the current binary actually enables desktop capabilities.
ffi will reflect whether the current interpreter has built-in FFI; BT official interpreter has built-in FFI by default, and the special tailored version may be false.
features returns the static capability table and does not perform runtime scanning.
Field names are fixed with snake_case or lowercase words, and can be used with BT.has(name) to determine individual abilities.