From 2eda329be6ac2f68e9b313ee607ea24165c68755 Mon Sep 17 00:00:00 2001
From: Dave Methvin <dave.methvin@gmail.com>
Date: Sun, 9 Dec 2012 14:45:31 -0500
Subject: [PATCH] Ref #13019 and gh-1062. Use parentNode check instead of
 isDisconnected().

---
 src/manipulation.js | 11 +++++------
 src/traversing.js   |  6 ------
 2 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/src/manipulation.js b/src/manipulation.js
index c19217c43..992696a0b 100644
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -141,7 +141,7 @@ jQuery.fn.extend({
 
 	before: function() {
 		return this.domManip( arguments, false, function( elem ) {
-			if ( !isDisconnected( this ) ) {
+			if ( this.parentNode ) {
 				this.parentNode.insertBefore( elem, this );
 			}
 		});
@@ -149,7 +149,7 @@ jQuery.fn.extend({
 
 	after: function() {
 		return this.domManip( arguments, false, function( elem ) {
-			if ( !isDisconnected( this ) ) {
+			if ( this.parentNode ) {
 				this.parentNode.insertBefore( elem, this.nextSibling );
 			}
 		});
@@ -258,12 +258,11 @@ jQuery.fn.extend({
 		}
 
 		return this.domManip( [ value ], true, function( elem ) {
-			var next, parent;
-
-			if ( !isDisconnected( this ) && this.nodeType === 1 || this.nodeType === 11 ) {
-				next = this.nextSibling;
+			var next = this.nextSibling,
 				parent = this.parentNode;
 
+			if ( parent && this.nodeType === 1 || this.nodeType === 11 ) {
+
 				jQuery( this ).remove();
 
 				if ( next ) {
diff --git a/src/traversing.js b/src/traversing.js
index e9b702c3d..99c381010 100644
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -131,12 +131,6 @@ jQuery.fn.extend({
 
 jQuery.fn.andSelf = jQuery.fn.addBack;
 
-// A painfully simple check to see if an element is disconnected
-// from a document (should be improved, where feasible).
-function isDisconnected( node ) {
-	return !node || !node.parentNode || node.parentNode.nodeType === 11;
-}
-
 function sibling( cur, dir ) {
 	do {
 		cur = cur[ dir ];
-- 
2.39.5