FisArrayBuffer
Bun

function

util.types.isArrayBuffer

function isArrayBuffer(
object: unknown
): object is ArrayBuffer;

Returns true if the value is a built-in ArrayBuffer instance. This does not include SharedArrayBuffer instances. Usually, it is desirable to test for both; See util.types.isAnyArrayBuffer() for that.

util.types.isArrayBuffer(new ArrayBuffer());  // Returns true
util.types.isArrayBuffer(new SharedArrayBuffer());  // Returns false