Function: combineAbortSignals()
combineAbortSignals(…
signals):AbortSignal|undefined
Combine several optional cancellation sources into one signal that aborts as soon as any of them does.
The usual caller is an operation that has to honor more than one source at
once - a caller’s own signal (a closed connection, an agent run being
cancelled) plus one derived from a timeout - where the awaited I/O accepts
only a single signal. Absent sources are ignored, and a lone signal is
returned as-is so the common path allocates nothing. Returns undefined
only when every input is absent, which callers can pass straight through
to an optional signal parameter.
Aborting an input aborts the result (carrying that input’s reason);
nothing propagates back the other way.
Parameters
Section titled “Parameters”signals
Section titled “signals”…(AbortSignal | undefined)[]
Returns
Section titled “Returns”AbortSignal | undefined
Example
Section titled “Example”await fetch(url, { signal: combineAbortSignals(req.signal, timeout.signal) });