From cd9082f069aae0f8dcdf897d3e9c4f09b40e8f9f Mon Sep 17 00:00:00 2001
From: NuoHui <xyz1657413883@gmail.com>
Date: Sun, 11 Apr 2021 10:26:31 +0800
Subject: [PATCH 1/2] refactor: replace `==` operator with util.isNil()

---
 index.js    | 10 +++++-----
 lib/util.js |  4 ++++
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/index.js b/index.js
index 816a15a..9e98b13 100644
--- a/index.js
+++ b/index.js
@@ -66,12 +66,12 @@ function formatOpts(opts) {
   if (!('maxAge' in opts)) opts.maxAge = opts.maxage;
 
   // defaults
-  if (opts.overwrite == null) opts.overwrite = true;
-  if (opts.httpOnly == null) opts.httpOnly = true;
+  if (util.isNil(opts.overwrite)) opts.overwrite = true;
+  if (util.isNil(opts.httpOnly)) opts.httpOnly = true;
   // delete null sameSite config
-  if (opts.sameSite == null) delete opts.sameSite;
-  if (opts.signed == null) opts.signed = true;
-  if (opts.autoCommit == null) opts.autoCommit = true;
+  if (util.isNil(opts.sameSite)) delete opts.sameSite;
+  if (util.isNil(opts.signed)) opts.signed = true;
+  if (util.isNil(opts.autoCommit)) opts.autoCommit = true;
 
   debug('session options %j', opts);
 
diff --git a/lib/util.js b/lib/util.js
index b3a1a28..c9afc9c 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -35,5 +35,9 @@ module.exports = {
     return crc(JSON.stringify(sess));
   },
 
+  isNil(val) {
+    return val === null || typeof val === 'undefined'
+  },
+
   CookieDateEpoch: 'Thu, 01 Jan 1970 00:00:00 GMT',
 };

From 5b3afa482f5d625012bf9ca355af705c3539cdf6 Mon Sep 17 00:00:00 2001
From: NuoHui <xyz1657413883@gmail.com>
Date: Sun, 11 Apr 2021 10:34:46 +0800
Subject: [PATCH 2/2] fix: lint error

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

diff --git a/lib/util.js b/lib/util.js
index c9afc9c..67c61ca 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -36,7 +36,7 @@ module.exports = {
   },
 
   isNil(val) {
-    return val === null || typeof val === 'undefined'
+    return val === null || typeof val === 'undefined';
   },
 
   CookieDateEpoch: 'Thu, 01 Jan 1970 00:00:00 GMT',