API · Low level

resume()

Clear an external pause and allow buffered or source values to flow while downstream is ready.

Signature

resume(fromInside?: boolean): this

Behavior

User calls omit fromInside, clearing the external pause flag. Delivery restarts only when no internal pause remains, autostart is enabled, async consumers/generators have called next(), and the stream is not terminal.

Resume flushes buffered frames first, stopping again if downstream applies pressure. It then advances iterable or generator sources and emits drain for writable roots when capacity is available. Calls after termination are no-ops.

Attaching standard terminals resumes their sink automatically. Direct resume() without a consumer can start a source only where graph demand permits; use drain() to intentionally consume and discard output.

Related

pause(), start(), drain()