events: improve addAbortListener perf by saving the same options ob…

…ject
nodejs · Apr 4, 2024 · 4453ccb · 4453ccb
1 parent 74343a7
commit 4453ccb
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/internal/events/abort_listener.js b/lib/internal/events/abort_listener.js
@@ -15,6 +15,7 @@ const {
 
 let queueMicrotask;
 let kResistStopPropagation;
+let abortListenerOptions;
 
 /**
  * @param {AbortSignal} signal
@@ -34,8 +35,9 @@ function addAbortListener(signal, listener) {
     queueMicrotask(() => listener());
   } else {
     kResistStopPropagation ??= require('internal/event_target').kResistStopPropagation;
+    abortListenerOptions ??= Object.freeze({ __proto__: null, once: true, [kResistStopPropagation]: true });
     // TODO(atlowChemi) add { subscription: true } and return directly
-    signal.addEventListener('abort', listener, { __proto__: null, once: true, [kResistStopPropagation]: true });
+    signal.addEventListener('abort', listener, abortListenerOptions);
     removeEventListener = () => {
       signal.removeEventListener('abort', listener);
     };