From ef165064634e1da6ba8303b08000ba9f079271a5 Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Sat, 14 Dec 2019 10:14:48 -0500
Subject: [PATCH 1/3] stream: for...of in _stream_duplex.js

---
 lib/_stream_duplex.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/_stream_duplex.js b/lib/_stream_duplex.js
index 572e6da94d8a6a..af2522313f80a2 100644
--- a/lib/_stream_duplex.js
+++ b/lib/_stream_duplex.js
@@ -42,9 +42,7 @@ ObjectSetPrototypeOf(Duplex, Readable);
 
 {
   // Allow the keys array to be GC'ed.
-  const keys = ObjectKeys(Writable.prototype);
-  for (let v = 0; v < keys.length; v++) {
-    const method = keys[v];
+  for (const method of ObjectKeys(Writable.prototype)) {
     if (!Duplex.prototype[method])
       Duplex.prototype[method] = Writable.prototype[method];
   }

From cd973facf0a8a3f77dd3373a60ee00031f8cc87d Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Sat, 14 Dec 2019 10:16:47 -0500
Subject: [PATCH 2/3] stream: for...of in _stream_readable.js

---
 lib/_stream_readable.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 6226bbf5eb4063..6bc70d5f8295ab 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -874,8 +874,8 @@ Readable.prototype.unpipe = function(dest) {
     state.pipes = [];
     state.flowing = false;
 
-    for (var i = 0; i < dests.length; i++)
-      dests[i].emit('unpipe', this, { hasUnpiped: false });
+    for (const dest in dests)
+      dest.emit('unpipe', this, { hasUnpiped: false });
     return this;
   }
 
@@ -1079,8 +1079,8 @@ Readable.prototype.wrap = function(stream) {
   }
 
   // Proxy certain important events.
-  for (var n = 0; n < kProxyEvents.length; n++) {
-    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+  for (const kProxyEvent of kProxyEvents) {
+    stream.on(kProxyEvent, this.emit.bind(this, kProxyEvent));
   }
 
   // When we try to consume some more bytes, simply unpause the

From 80731ed7ca9ff4c112d99bc3ecec3a5313869c97 Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Sat, 14 Dec 2019 10:50:53 -0500
Subject: [PATCH 3/3] f typo for...in to for...of

---
 lib/_stream_readable.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 6bc70d5f8295ab..d8cb99c022f49d 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -874,7 +874,7 @@ Readable.prototype.unpipe = function(dest) {
     state.pipes = [];
     state.flowing = false;
 
-    for (const dest in dests)
+    for (const dest of dests)
       dest.emit('unpipe', this, { hasUnpiped: false });
     return this;
   }