ByteArrayQ

ByteArrayQ[expr] gives True if expr is a valid ByteArray object, and False otherwise.

Examples

Test byte array:

ByteArrayQ[ByteArray[{1, 2, 3}]]
(* True *)

Non-byte array:

ByteArrayQ[{1, 2, 3}]
(* False *)

Please visit the official Wolfram Language Reference for more details.