From a591ca6152d305fde008a83c59e1c5181f337f61 Mon Sep 17 00:00:00 2001
From: Kamal Aman <kaman@majik.io>
Date: Sat, 17 Jun 2017 10:51:52 -0400
Subject: [PATCH] Fixes bug with difference dates in the same second returning
 true

---
 src/diff/index.js         | 2 +-
 src/diff/index.test.js    | 1 +
 src/updated/index.js      | 2 +-
 src/updated/index.test.js | 1 +
 4 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/diff/index.js b/src/diff/index.js
index a44e255..74b961b 100644
--- a/src/diff/index.js
+++ b/src/diff/index.js
@@ -13,7 +13,7 @@ const diff = (lhs, rhs) => {
   }, {});
 
   if (isDate(l) || isDate(r)) {
-    if (l.toString() == r.toString()) return {};
+    if (l.valueOf() == r.valueOf()) return {};
     return r;
   }
 
diff --git a/src/diff/index.test.js b/src/diff/index.test.js
index 47bf3a4..3d6cb67 100644
--- a/src/diff/index.test.js
+++ b/src/diff/index.test.js
@@ -35,6 +35,7 @@ describe('.diff', () => {
         [100, () => ({})],
         [() => ({}), 100],
         [new Date('2017-01-01'), new Date('2017-01-02')],
+        [new Date('2017-01-01T00:00:00.636Z'), new Date('2017-01-01T00:00:00.637Z')],
       ]).test('returns right hand side value when different to left hand side value (%s, %s)', (lhs, rhs) => {
         expect(diff(lhs, rhs)).toEqual(rhs);
       });
diff --git a/src/updated/index.js b/src/updated/index.js
index 6a369f9..4b01775 100644
--- a/src/updated/index.js
+++ b/src/updated/index.js
@@ -10,7 +10,7 @@ const updatedDiff = (lhs, rhs) => {
   const r = properObject(rhs);
 
   if (isDate(l) || isDate(r)) {
-    if (l.toString() == r.toString()) return {};
+    if (l.valueOf() == r.valueOf()) return {};
     return r;
   }
 
diff --git a/src/updated/index.test.js b/src/updated/index.test.js
index b88b47c..c7f919e 100644
--- a/src/updated/index.test.js
+++ b/src/updated/index.test.js
@@ -35,6 +35,7 @@ describe('.updatedDiff', () => {
         [100, () => ({})],
         [() => ({}), 100],
         [new Date('2017-01-01'), new Date('2017-01-02')],
+        [new Date('2017-01-01T00:00:00.636Z'), new Date('2017-01-01T00:00:00.637Z')],
       ]).test('returns right hand side value when different to left hand side value (%s, %s)', (lhs, rhs) => {
         expect(updatedDiff(lhs, rhs)).toEqual(rhs);
       });