ArrayBuffer.prototype.transfer()

The transfer() method of ArrayBuffer instances creates a new ArrayBuffer with the same byte content as this buffer, then detaches this buffer.

The transfer() method performs the same operation as the structured clone algorithm. It copies the bytes of this ArrayBuffer into a new ArrayBuffer object, then detaches this ArrayBuffer object. See transferring ArrayBuffers for more information.

transfer() preserves the resizability of this ArrayBuffer. If you want the new ArrayBuffer to be non-resizable, use transferToFixedLength() instead. There’s no way to transfer a buffer that makes a fixed-length buffer become resizable.

transfer() is very efficient because implementations may implement this method as a zero-copy move or a realloc — there does not need to be an actual copy of the data.

Syntax example: transfer()