From 1c05014782e7e27af09142b601d7248ebd9ef7f0 Mon Sep 17 00:00:00 2001
From: wbt <wbt@users.noreply.github.com>
Date: Wed, 24 Feb 2021 08:20:16 -0500
Subject: [PATCH 1/2] Cleanup exception/rejection handler B4 replacing.

Attempts to address comment: https://github.com/winstonjs/winston/pull/1824#issuecomment-784935345
---
 lib/winston/logger.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/winston/logger.js b/lib/winston/logger.js
index dc7866854..7523c69d7 100644
--- a/lib/winston/logger.js
+++ b/lib/winston/logger.js
@@ -107,6 +107,12 @@ class Logger extends Transform {
     // Hoist other options onto this instance.
     this.levels = levels || this.levels || config.npm.levels;
     this.level = level;
+    if(this.exceptions !== undefined) {
+        this.exceptions.unhandle();
+    }
+    if(this.rejections !== undefined) {
+        this.rejections.unhandle();
+    }
     this.exceptions = new ExceptionHandler(this);
     this.rejections = new RejectionHandler(this);
     this.profilers = {};

From b7e8f771324898406278d5327e452301dbf03b13 Mon Sep 17 00:00:00 2001
From: wbt <wbt@users.noreply.github.com>
Date: Wed, 24 Feb 2021 08:26:56 -0500
Subject: [PATCH 2/2] Fix undefined check to use typeof

avoiding possible variable shadowing isssue
---
 lib/winston/logger.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/winston/logger.js b/lib/winston/logger.js
index 7523c69d7..0f5f53e15 100644
--- a/lib/winston/logger.js
+++ b/lib/winston/logger.js
@@ -107,10 +107,10 @@ class Logger extends Transform {
     // Hoist other options onto this instance.
     this.levels = levels || this.levels || config.npm.levels;
     this.level = level;
-    if(this.exceptions !== undefined) {
+    if(typeof this.exceptions !== "undefined") {
         this.exceptions.unhandle();
     }
-    if(this.rejections !== undefined) {
+    if(typeof this.rejections !== "undefined") {
         this.rejections.unhandle();
     }
     this.exceptions = new ExceptionHandler(this);