Remove the NonDocumentTypeChildNode mixin

files/en-us/_redirects.txt

@@ -1357,8 +1357,8 @@
 /en-US/docs/DOM/Element.lastElementChild	/en-US/docs/Web/API/ParentNode/lastElementChild
 /en-US/docs/DOM/Element.mozMatchesSelector	/en-US/docs/Web/API/Element/matches
 /en-US/docs/DOM/Element.mozRequestFullScreen	/en-US/docs/Web/API/Element/requestFullScreen
-/en-US/docs/DOM/Element.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
-/en-US/docs/DOM/Element.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/DOM/Element.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/DOM/Element.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/DOM/Element.querySelector	/en-US/docs/Web/API/Element/querySelector
 /en-US/docs/DOM/Element.querySelectorAll	/en-US/docs/Web/API/Element/querySelectorAll
 /en-US/docs/DOM/Event/CustomEvent	/en-US/docs/Web/API/CustomEvent
@@ -2975,8 +2975,8 @@
 /en-US/docs/Document_Object_Model_(DOM)/Element.lastElementChild	/en-US/docs/Web/API/ParentNode/lastElementChild
 /en-US/docs/Document_Object_Model_(DOM)/Element.mozMatchesSelector	/en-US/docs/Web/API/Element/matches
 /en-US/docs/Document_Object_Model_(DOM)/Element.mozRequestFullScreen	/en-US/docs/Web/API/Element/requestFullScreen
-/en-US/docs/Document_Object_Model_(DOM)/Element.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
-/en-US/docs/Document_Object_Model_(DOM)/Element.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Document_Object_Model_(DOM)/Element.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/Document_Object_Model_(DOM)/Element.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Document_Object_Model_(DOM)/Element.querySelector	/en-US/docs/Web/API/Element/querySelector
 /en-US/docs/Document_Object_Model_(DOM)/Element.querySelectorAll	/en-US/docs/Web/API/Element/querySelectorAll
 /en-US/docs/Document_Object_Model_(DOM)/File	/en-US/docs/Web/API/File
@@ -7367,13 +7367,13 @@
 /en-US/docs/Web/API/CanvasRenderingContext2D/mozImageSmoothingEnabled	/en-US/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled
 /en-US/docs/Web/API/CanvasRenderingContext2D/mozTextStyle	/en-US/docs/Web/API/CanvasRenderingContext2D/font
 /en-US/docs/Web/API/Canvas_API/Drawing_graphics_with_canvas	/en-US/docs/Web/API/Canvas_API/Tutorial
-/en-US/docs/Web/API/CharacterData.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
-/en-US/docs/Web/API/CharacterData/nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
-/en-US/docs/Web/API/CharacterData/previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Web/API/CharacterData.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
+/en-US/docs/Web/API/CharacterData/nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/Web/API/CharacterData/previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Web/API/CharacterData/remove	/en-US/docs/Web/API/ChildNode/remove
-/en-US/docs/Web/API/ChildNode.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
+/en-US/docs/Web/API/ChildNode.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
 /en-US/docs/Web/API/ChildNode.remove	/en-US/docs/Web/API/ChildNode/remove
-/en-US/docs/Web/API/Childnode.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Web/API/Childnode.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Web/API/Client/focus	/en-US/docs/Web/API/WindowClient/focus
 /en-US/docs/Web/API/Client/focused	/en-US/docs/Web/API/WindowClient/focused
 /en-US/docs/Web/API/Client/visibilityState	/en-US/docs/Web/API/WindowClient/visibilityState
@@ -7601,10 +7601,10 @@
 /en-US/docs/Web/API/Element.matrches	/en-US/docs/Web/API/Element/matches
 /en-US/docs/Web/API/Element.mozMatchesSelector	/en-US/docs/Web/API/Element/matches
 /en-US/docs/Web/API/Element.mozRequestFullScreen	/en-US/docs/Web/API/Element/requestFullScreen
-/en-US/docs/Web/API/Element.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
+/en-US/docs/Web/API/Element.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
 /en-US/docs/Web/API/Element.offsetTop	/en-US/docs/Web/API/HTMLElement/offsetTop
 /en-US/docs/Web/API/Element.onmouseover	/en-US/docs/Web/API/GlobalEventHandlers/onmouseover
-/en-US/docs/Web/API/Element.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Web/API/Element.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Web/API/Element.querySelector	/en-US/docs/Web/API/Element/querySelector
 /en-US/docs/Web/API/Element.querySelectorAll	/en-US/docs/Web/API/Element/querySelectorAll
 /en-US/docs/Web/API/Element.requestFullScreen	/en-US/docs/Web/API/Element/requestFullScreen
@@ -7634,7 +7634,6 @@
 /en-US/docs/Web/API/Element/mozRequestFullScreen	/en-US/docs/Web/API/Element/requestFullScreen
 /en-US/docs/Web/API/Element/msMatchesSelector	/en-US/docs/Web/API/Element/matches
 /en-US/docs/Web/API/Element/name	/en-US/docs/Web/API
-/en-US/docs/Web/API/Element/nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
 /en-US/docs/Web/API/Element/ongotpointercapture	/en-US/docs/Web/API/GlobalEventHandlers/ongotpointercapture
 /en-US/docs/Web/API/Element/onlostpointercapture	/en-US/docs/Web/API/GlobalEventHandlers/onlostpointercapture
 /en-US/docs/Web/API/Element/onwheel	/en-US/docs/Web/API/GlobalEventHandlers/onwheel
@@ -7647,14 +7646,13 @@
 /en-US/docs/Web/API/Element/pointerout_event	/en-US/docs/Web/API/HTMLElement/pointerout_event
 /en-US/docs/Web/API/Element/pointerover_event	/en-US/docs/Web/API/HTMLElement/pointerover_event
 /en-US/docs/Web/API/Element/pointerup_event	/en-US/docs/Web/API/HTMLElement/pointerup_event
-/en-US/docs/Web/API/Element/previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
 /en-US/docs/Web/API/Element/remove	/en-US/docs/Web/API/ChildNode/remove
 /en-US/docs/Web/API/Element/resourcetimingbufferfull_event	/en-US/docs/Web/API/Performance/resourcetimingbufferfull_event
 /en-US/docs/Web/API/ElementTraversal.childElementCount	/en-US/docs/Web/API/ParentNode/childElementCount
 /en-US/docs/Web/API/ElementTraversal.firstElementChild	/en-US/docs/Web/API/ParentNode/firstElementChild
 /en-US/docs/Web/API/ElementTraversal.lastElementChild	/en-US/docs/Web/API/ParentNode/lastElementChild
-/en-US/docs/Web/API/ElementTraversal.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
-/en-US/docs/Web/API/ElementTraversal.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Web/API/ElementTraversal.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/Web/API/ElementTraversal.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Web/API/EncryptedMediaExtensions	/en-US/docs/Web/API/Encrypted_Media_Extensions_API
 /en-US/docs/Web/API/EncryptedMediaExtensions_API	/en-US/docs/Web/API/Encrypted_Media_Extensions_API
 /en-US/docs/Web/API/Entry	/en-US/docs/Web/API/FileSystemEntry
@@ -8409,8 +8407,11 @@
 /en-US/docs/Web/API/NodeIterator.whatToShow	/en-US/docs/Web/API/NodeIterator/whatToShow
 /en-US/docs/Web/API/NodeList.item	/en-US/docs/Web/API/NodeList/item
 /en-US/docs/Web/API/NodeList.length	/en-US/docs/Web/API/NodeList/length
-/en-US/docs/Web/API/NonDocumentTypeChildNode.nextElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling
-/en-US/docs/Web/API/NonDocumentTypeChildNode.previousElementSibling	/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling
+/en-US/docs/Web/API/NonDocumentTypeChildNode	/en-US/docs/Web/API/Element
+/en-US/docs/Web/API/NonDocumentTypeChildNode.nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/Web/API/NonDocumentTypeChildNode.previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
+/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling	/en-US/docs/Web/API/Element/nextElementSibling
+/en-US/docs/Web/API/NonDocumentTypeChildNode/previousElementSibling	/en-US/docs/Web/API/Element/previousElementSibling
 /en-US/docs/Web/API/Notification.body	/en-US/docs/Web/API/Notification/body
 /en-US/docs/Web/API/Notification.close	/en-US/docs/Web/API/Notification/close
 /en-US/docs/Web/API/Notification.dir	/en-US/docs/Web/API/Notification/dir

files/en-us/_wikihistory.json

@@ -69972,55 +69972,6 @@
       "teoli"
     ]
   },
-  "Web/API/NonDocumentTypeChildNode": {
-    "modified": "2020-10-15T21:29:39.756Z",
-    "contributors": [
-      "sideshowbarker",
-      "mfluehr",
-      "fscholz",
-      "teoli"
-    ]
-  },
-  "Web/API/NonDocumentTypeChildNode/nextElementSibling": {
-    "modified": "2020-10-15T21:05:52.064Z",
-    "contributors": [
-      "Krinkle",
-      "fscholz",
-      "freginold",
-      "jszhou",
-      "RobBelics",
-      "birjolaxew",
-      "Alhadis",
-      "teoli",
-      "awalGarg",
-      "tregagnon",
-      "Sheppy",
-      "ziyunfei",
-      "GavinSharp",
-      "Jürgen Jeka"
-    ]
-  },
-  "Web/API/NonDocumentTypeChildNode/previousElementSibling": {
-    "modified": "2020-10-15T21:05:48.149Z",
-    "contributors": [
-      "mfluehr",
-      "sideshowbarker",
-      "fscholz",
-      "varEnigmatic",
-      "jszhou",
-      "Alhadis",
-      "kscarfone",
-      "teoli",
-      "tregagnon",
-      "ethertank",
-      "Sheppy",
-      "moshkin",
-      "ziyunfei",
-      "BillyRayPreachersSon",
-      "JohnST",
-      "Jürgen Jeka"
-    ]
-  },
   "Web/API/Notation": {
     "modified": "2020-10-15T21:14:44.239Z",
     "contributors": [
@@ -165867,6 +165818,46 @@
       "sideshowbarker"
     ]
   },
+  "Web/API/Element/previousElementSibling": {
+    "modified": "2020-10-15T21:05:48.149Z",
+    "contributors": [
+      "mfluehr",
+      "sideshowbarker",
+      "fscholz",
+      "varEnigmatic",
+      "jszhou",
+      "Alhadis",
+      "kscarfone",
+      "teoli",
+      "tregagnon",
+      "ethertank",
+      "Sheppy",
+      "moshkin",
+      "ziyunfei",
+      "BillyRayPreachersSon",
+      "JohnST",
+      "Jürgen Jeka"
+    ]
+  },
+  "Web/API/Element/nextElementSibling": {
+    "modified": "2020-10-15T21:05:52.064Z",
+    "contributors": [
+      "Krinkle",
+      "fscholz",
+      "freginold",
+      "jszhou",
+      "RobBelics",
+      "birjolaxew",
+      "Alhadis",
+      "teoli",
+      "awalGarg",
+      "tregagnon",
+      "Sheppy",
+      "ziyunfei",
+      "GavinSharp",
+      "Jürgen Jeka"
+    ]
+  },
   "Web/API/Document/activeElement": {
     "modified": "2020-10-15T21:49:26.859Z",
     "contributors": [
@@ -165886,4 +165877,4 @@
       "david_ross"
     ]
   }
-}
+}

files/en-us/web/api/characterdata/index.html

@@ -7,28 +7,28 @@
 ---
 <p>{{APIRef("DOM")}}</p>
 
-<p>The <code><strong>CharacterData</strong></code> abstract interface represents a {{domxref("Node")}} object that contains characters. This is an abstract interface, meaning there aren't any object of type <code>CharacterData</code>: it is implemented by other interfaces, like {{domxref("Text")}}, {{domxref("Comment")}}, or {{domxref("ProcessingInstruction")}} which aren't abstract.</p>
+<p>The <code><strong>CharacterData</strong></code> abstract interface represents a {{domxref("Node")}} object that contains characters. This is an abstract interface, meaning there aren't any objects of type <code>CharacterData</code>: it is implemented by other interfaces like {{domxref("Text")}}, {{domxref("Comment")}}, or {{domxref("ProcessingInstruction")}}, which aren't abstract.</p>
 
 <p>{{InheritanceDiagram}}</p>
 
 <h2 id="Properties">Properties</h2>
 
-<p><em>Inherits properties from its parent, {{domxref("Node")}}, and implements the {{domxref("ChildNode")}} and {{domxref("NonDocumentTypeChildNode")}} interface.</em></p>
+<p><em><code>CharacterData</code> inherits properties from its parent, {{domxref("Node")}}.</em></p>
 
 <dl>
  <dt>{{domxref("CharacterData.data")}}</dt>
  <dd>Is a {{domxref("DOMString")}} representing the textual data contained in this object.</dd>
  <dt>{{domxref("CharacterData.length")}} {{readonlyInline}}</dt>
  <dd>Returns an <code>unsigned long</code> representing the size of the string contained in <code>CharacterData.data</code>.</dd>
- <dt>{{domxref("NonDocumentTypeChildNode.nextElementSibling")}} {{readonlyInline}}</dt>
+ <dt>{{domxref("CharacterData.nextElementSibling")}} {{readonlyInline}}</dt>
  <dd>Returns the {{domxref("Element")}} immediately following the specified one in its parent's children list, or <code>null</code> if the specified element is the last one in the list.</dd>
- <dt>{{domxref("NonDocumentTypeChildNode.previousElementSibling")}} {{readonlyInline}}</dt>
+ <dt>{{domxref("CharacterData.previousElementSibling")}} {{readonlyInline}}</dt>
  <dd>Returns the {{domxref("Element")}} immediately prior to the specified one in its parent's children list, or <code>null</code> if the specified element is the first one in the list.</dd>
 </dl>
 
 <h2 id="Methods">Methods</h2>
 
-<p><em>Inherits methods from its parent, {{domxref("Node")}}, and implements the {{domxref("ChildNode")}} and {{domxref("NonDocumentTypeChildNode")}} interface.</em></p>
+<p><em><code>CharacterData</code> inherits methods from its parent, {{domxref("Node")}}.</em></p>
 
 <dl>
  <dt>{{domxref("CharacterData.appendData()")}}</dt>
@@ -83,12 +83,10 @@ <h2 id="Browser_compatibility">Browser compatibility</h2>
 <p>The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>
 </div>
 
-
 <p>{{Compat("api.CharacterData")}}</p>
 
 <h2 id="See_also">See also</h2>
 
-
 <ul>
  <li><a href="/en-US/docs/Web/API/Document_Object_Model">The DOM interfaces index</a>.</li>
 </ul>

files/en-us/web/api/document_object_model/index.html

@@ -54,7 +54,6 @@ <h2 id="DOM_interfaces">DOM interfaces</h2>
  <li>{{DOMxRef("NodeFilter")}}</li>
  <li>{{DOMxRef("NodeIterator")}}</li>
  <li>{{DOMxRef("NodeList")}}</li>
- <li>{{DOMxRef("NonDocumentTypeChildNode")}}</li>
  <li>{{DOMxRef("ParentNode")}}</li>
  <li>{{DOMxRef("ProcessingInstruction")}}</li>
  <li>{{DOMxRef("Selection")}} {{Experimental_Inline}}</li>

files/en-us/web/api/element/index.html

@@ -20,7 +20,7 @@
 
 <h2 id="Properties">Properties</h2>
 
-<p><em>Inherits properties from its parent interface, {{DOMxRef("Node")}}, and by extension that interface's parent, {{DOMxRef("EventTarget")}}. It implements the properties of {{DOMxRef("ParentNode")}}, {{DOMxRef("ChildNode")}}, {{DOMxRef("NonDocumentTypeChildNode")}},</em> and {{DOMxRef("Animatable")}}.</p>
+<p><em><code>Element</code> inherits properties from its parent interface, {{DOMxRef("Node")}}, and by extension that interface's parent, {{DOMxRef("EventTarget")}}.</em></p>
 
 <dl>
  <dt>{{DOMxRef("Element.assignedSlot")}}{{readonlyInline}}</dt>
@@ -55,15 +55,15 @@ <h2 id="Properties">Properties</h2>
  <p><strong>Note:</strong> In Firefox 3.5 and earlier, HTML elements are in no namespace. In later versions, HTML elements are in the <code><a class="linkification-ext external" href="https://www.w3.org/1999/xhtml" title="Linkification: http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a></code> namespace in both HTML and XML trees. {{ gecko_minversion_inline("1.9.2")}}</p>
  </div>
  </dd>
- <dt>{{DOMxRef("NonDocumentTypeChildNode.nextElementSibling")}} {{readOnlyInline}}</dt>
+ <dt>{{DOMxRef("Element.nextElementSibling")}} {{readOnlyInline}}</dt>
  <dd>Is an {{DOMxRef("Element")}}, the element immediately following the given one in the tree, or <code>null</code> if there's no sibling node.</dd>
  <dt>{{DOMxRef("Element.outerHTML")}}</dt>
  <dd>Is a {{DOMxRef("DOMString")}} representing the markup of the element including its content. When used as a setter, replaces the element with nodes parsed from the given string.</dd>
  <dt>{{DOMxRef("Element.part")}}</dt>
  <dd>Represents the part identifier(s) of the element (i.e. set using the <code>part</code> attribute), returned as a {{domxref("DOMTokenList")}}.</dd>
  <dt>{{DOMxRef("Element.prefix")}} {{readOnlyInline}}</dt>
  <dd>A {{DOMxRef("DOMString")}} representing the namespace prefix of the element, or <code>null</code> if no prefix is specified.</dd>
- <dt>{{DOMxRef("NonDocumentTypeChildNode.previousElementSibling")}} {{readOnlyInline}}</dt>
+ <dt>{{DOMxRef("Element.previousElementSibling")}} {{readOnlyInline}}</dt>
  <dd>Is a {{DOMxRef("Element")}}, the element immediately preceding the given one in the tree, or <code>null</code> if there is no sibling element.</dd>
  <dt>{{DOMxRef("Element.scrollHeight")}} {{readOnlyInline}}</dt>
  <dd>Returns a {{jsxref("Number")}} representing the scroll view height of an element.</dd>
@@ -110,7 +110,7 @@ <h3 id="Handlers">Event handlers</h3>
 
 <h2 id="Methods">Methods</h2>
 
-<p><em>Inherits methods from its parents {{DOMxRef("Node")}}, and its own parent, {{DOMxRef("EventTarget")}}, and implements those of {{DOMxRef("ParentNode")}}, {{DOMxRef("ChildNode")}}, {{DOMxRef("NonDocumentTypeChildNode")}}, and {{DOMxRef("Animatable")}}.</em></p>
+<p><em><code>Element</code> inherits methods from its parents {{DOMxRef("Node")}}, and its own parent, {{DOMxRef("EventTarget")}}.</em></p>
 
 <dl>
  <dt>{{DOMxRef("EventTarget.addEventListener()")}}</dt>

files/en-us/web/api/element/nextelementsibling/index.html

@@ -0,0 +1,67 @@
+---
+title: Element.nextElementSibling
+slug: Web/API/Element/nextElementSibling
+tags:
+  - API
+  - DOM
+  - Element
+  - Property
+---
+<div>{{APIRef("DOM")}}</div>
+
+<p>The <code><strong>Element.nextElementSibling</strong></code> read-only
+property returns the element immediately following the specified one in its parent's
+children list, or <code>null</code> if the specified element is the last one in the list.</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="brush: js">
+// Getter
+element = el.nextElementSibling;
+
+// No setter; read-only property
+</pre>
+
+<h2 id="Example">Example</h2>
+
+<pre class="brush: html">&lt;div id="div-01"&gt;Here is div-01&lt;/div&gt;
+&lt;div id="div-02"&gt;Here is div-02&lt;/div&gt;
+
+&lt;script type="text/javascript"&gt;
+  let el = document.getElementById('div-01').nextElementSibling;
+  console.log('Siblings of div-01:');
+  while (el) {
+    console.log(el.nodeName);
+    el = el.nextElementSibling;
+  }
+&lt;/script&gt;
+</pre>
+
+<p>This example outputs the following into the console when it loads:</p>
+
+<pre>Siblings of div-01:
+DIV
+SCRIPT</pre>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+  <tbody>
+    <tr>
+      <th scope="col">Specification</th>
+    </tr>
+    <tr>
+      <td>{{SpecName('DOM WHATWG', '#dom-nondocumenttypechildnode-nextelementsibling', 'NonDocumentTypeChildNode.nextElementSibling')}}</td>
+    </tr>
+  </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<p>{{Compat("api.Element.nextElementSibling")}}</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+  <li>{{domxref("Element.previousElementSibling")}}</li>
+</ul>