From 0c25dd44b32f243e14d30b3668391e2322e33b8c Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 18 Aug 2012 21:41:29 -0700
Subject: [PATCH] Ensure `_.isElement` uses strict equality in its duck type
 check.

Former-commit-id: 6348026ebdc219ef1df9926aca1d8df66e472de9
---
 lodash.js    |  2 +-
 test/test.js | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/lodash.js b/lodash.js
index a453812ee..a06b6af0f 100644
--- a/lodash.js
+++ b/lodash.js
@@ -1281,7 +1281,7 @@
    * // => true
    */
   function isElement(value) {
-    return value ? value.nodeType == 1 : false;
+    return value ? value.nodeType === 1 : false;
   }
 
   /**
diff --git a/test/test.js b/test/test.js
index 9798b2bf2..7f156a0f3 100644
--- a/test/test.js
+++ b/test/test.js
@@ -699,6 +699,23 @@
 
   /*--------------------------------------------------------------------------*/
 
+  QUnit.module('lodash.isElement');
+
+  (function() {
+    test('should use strict equality in its duck type check', function() {
+      var element = window.document ? document.body : { 'nodeType': 1 };
+      equal(_.isElement(element), true);
+
+      equal(_.isElement({ 'nodeType': new Number(1) }), false);
+      equal(_.isElement({ 'nodeType': true }), false);
+      equal(_.isElement({ 'nodeType': [1] }), false);
+      equal(_.isElement({ 'nodeType': '1' }), false);
+      equal(_.isElement({ 'nodeType': '001' }), false);
+    });
+  }());
+
+  /*--------------------------------------------------------------------------*/
+
   QUnit.module('lodash.isEmpty');
 
   (function() {