From 31dacfe631e389505bb3ce17dff05e938eaee1ff Mon Sep 17 00:00:00 2001
From: gengjiawen <technicalcute@gmail.com>
Date: Fri, 1 Mar 2019 00:36:38 +0800
Subject: [PATCH] lib: improve for-loop in events.js

---
 lib/events.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/events.js b/lib/events.js
index 2d7ae8945ff0b2..eff75cca18431d 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -390,10 +390,7 @@ EventEmitter.prototype.removeAllListeners =
 
       // Emit removeListener for all listeners on all events
       if (arguments.length === 0) {
-        var keys = Object.keys(events);
-        var key;
-        for (i = 0; i < keys.length; ++i) {
-          key = keys[i];
+        for (const key of Object.keys(events)) {
           if (key === 'removeListener') continue;
           this.removeAllListeners(key);
         }