events: use null assignment instead of deleting property

nodejs · Dec 10, 2012 · 0397223 · 0397223
1 parent 3c293ba
commit 0397223
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/events.js b/lib/events.js
@@ -226,15 +226,15 @@ EventEmitter.prototype.removeListener = function(type, listener) {
     if (position < 0) return this;
     list.splice(position, 1);
     if (list.length == 0)
-      delete this._events[type];
+      this._events[type] = null;
 
     if (this._events.removeListener) {
       this.emit('removeListener', type, listener);
     }
   } else if (list === listener ||
              (list.listener && list.listener === listener))
   {
-    delete this._events[type];
+    this._events[type] = null;
 
     if (this._events.removeListener) {
       this.emit('removeListener', type, listener);