improve emitter.once() performance

Port of nodejs/node@5ba3a2c
wodeMAX · Jan 8, 2020 · 0754cd5 · 0754cd5
1 parent 7ad7ba6
commit 0754cd5
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/events.js b/events.js
@@ -234,12 +234,12 @@ EventEmitter.prototype.prependListener =
     };
 
 function onceWrapper() {
-  var args = [];
-  for (var i = 0; i < arguments.length; i++) args.push(arguments[i]);
   if (!this.fired) {
     this.target.removeListener(this.type, this.wrapFn);
     this.fired = true;
-    return ReflectApply(this.listener, this.target, args);
+    if (arguments.length === 0)
+      return this.listener.call(this.target);
+    return this.listener.apply(this.target, arguments);
   }
 }