Instance Method
append(contentsOf:)
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
Appends the bytes in the specified sequence to the end of the data.
@abi(func append(fastContentsof elements: some Sequence<UInt8>)) mutating func append(contentsOf elements: some Sequence<UInt8>)