Bun ArrayBufferSink class | API Reference | Bun

Fast incremental writer that becomes an ArrayBuffer on end().

Flush the internal buffer

If ArrayBufferSink.start was passed a stream option, this will return a ArrayBuffer If ArrayBufferSink.start was passed a stream option and asUint8Array, this will return a Uint8Array Otherwise, this will return the number of bytes written since the last flush

This API might change later to separate Uint8ArraySink and ArrayBufferSink