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diff --git a/files/ru/orphaned/web/api/parentnode/firstelementchild/index.html b/files/ru/orphaned/web/api/parentnode/firstelementchild/index.html
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+---
+title: ParentNode.firstElementChild
+slug: orphaned/Web/API/ParentNode/firstElementChild
+tags:
+  - API
+  - DOM
+  - ParentNode
+  - Property
+  - Reference
+translation_of: Web/API/ParentNode/firstElementChild
+original_slug: Web/API/ParentNode/firstElementChild
+---
+<p>{{ APIRef("DOM") }}</p>
+
+<p>Доступное только для чтения свойство <strong><code>ParentNode.firstElementChild</code></strong> возвращает первый дочерний элемент объекта ({{domxref("Element")}}) или <code>null</code> если дочерних элементов нет.</p>
+
+<div class="note">
+<p>This property was initially defined in the {{domxref("ElementTraversal")}} pure interface. As this interface contained two distinct set of properties, one aimed at {{domxref("Node")}} that have children, one at those that are children, they have been moved into two separate pure interfaces, {{domxref("ParentNode")}} and {{domxref("ChildNode")}}. In this case, <code>firstElementChild</code> moved to {{domxref("ParentNode")}}. This is a fairly technical change that shouldn't affect compatibility.</p>
+</div>
+
+<h2 id="Syntax_and_values" name="Syntax_and_values">Синтаксис</h2>
+
+<pre class="syntaxbox">var <em>childNode</em> = elementNodeReference.firstElementChild;
+</pre>
+
+<h2 id="Example" name="Example">Пример</h2>
+
+<pre class="brush: html">&lt;p id="para-01"&gt;
+  &lt;span&gt;First span&lt;/span&gt;
+&lt;/p&gt;
+
+&lt;script type="text/javascript"&gt;
+  var p01 = document.getElementById('para-01');
+  alert(p01.firstElementChild.nodeName)
+&lt;/script&gt;</pre>
+
+<p>В этом примере alert показывает 'span', что является именем тега первого дочернего узла элемента p.</p>
+
+<h2 id="Polyfill_для_Internet_Explorer_8">Polyfill для Internet Explorer 8</h2>
+
+<p>Это свойство не поддерживается браузером Internet Explorer вплоть до 9 версии, поэтому следующий сниппет может быть использован для добавления поддержки IE8:</p>
+
+<pre class="brush: js">// Source: https://github.com/Alhadis/Snippets/blob/master/js/polyfills/IE8-child-elements.js
+if(!("firstElementChild" in document.documentElement)){
+    Object.defineProperty(Element.prototype, "firstElementChild", {
+        get: function(){
+            for(var nodes = this.children, n, i = 0, l = nodes.length; i &lt; l; ++i)
+                if(n = nodes[i], 1 === n.nodeType) return n;
+            return null;
+        }
+    });
+}</pre>
+
+<h2 id="Спецификация">Спецификация</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Спецификация</th>
+   <th scope="col">Статус</th>
+   <th scope="col">Комментарий</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-parentnode-firstelementchild', 'ParentNode.firstElementChild')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>Splitted the <code>ElementTraversal</code> interface in {{domxref("ChildNode")}} and <code>ParentNode</code>. This method is now defined on the latter.<br>
+    The {{domxref("Document")}} and {{domxref("DocumentFragment")}} implemented the new interfaces.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('Element Traversal', '#attribute-firstElementChild', 'ElementTraversal.firstElementChild')}}</td>
+   <td>{{Spec2('Element Traversal')}}</td>
+   <td>Added its initial definition to the <code>ElementTraversal</code> pure interface and use it on {{domxref("Element")}}.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Совместимость_с_браузерами">Совместимость с браузерами</h2>
+
+<p>{{ CompatibilityTable() }}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Базовая поддержка ({{domxref("Element")}})</td>
+   <td>1.0</td>
+   <td>{{CompatGeckoDesktop("1.9.1")}}</td>
+   <td>9.0</td>
+   <td>10.0</td>
+   <td>4.0</td>
+  </tr>
+  <tr>
+   <td>Поддержка {{domxref("Document")}} и {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
+   <td>29.0</td>
+   <td>{{CompatGeckoDesktop("25.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>16.0</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Базовая поддержка ({{domxref("Element")}})</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{CompatGeckoMobile("1.9.1")}}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+  </tr>
+  <tr>
+   <td>Поддержка {{domxref("Document")}} и {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("25.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>16.0</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="Смотрите_также">Смотрите также</h2>
+
+<ul>
+ <li>{{domxref("ParentNode")}} и {{domxref("ChildNode")}}.</li>
+ <li>
+  <div class="syntaxbox">Типы объектов, имплементирующие данное свойство: {{domxref("Document")}}, {{domxref("Element")}}, и {{domxref("DocumentFragment")}}.</div>
+ </li>
+</ul>
diff --git a/files/ru/orphaned/web/api/parentnode/lastelementchild/index.html b/files/ru/orphaned/web/api/parentnode/lastelementchild/index.html
new file mode 100644
index 0000000000..8df658ceb5
--- /dev/null
+++ b/files/ru/orphaned/web/api/parentnode/lastelementchild/index.html
@@ -0,0 +1,162 @@
+---
+title: ParentNode.lastElementChild
+slug: orphaned/Web/API/ParentNode/lastElementChild
+tags:
+  - API
+  - DOM
+  - ParentNode
+  - Property
+  - Reference
+translation_of: Web/API/ParentNode/lastElementChild
+original_slug: Web/API/ParentNode/lastElementChild
+---
+<p>{{ APIRef("DOM") }}</p>
+
+<p><code><strong>Свойство ParentNode.lastElementChild</strong></code> только для чтения. Возвращает последний дочерний элемент объекта или <code>null</code> если нет дочерних элементов.</p>
+
+<div class="note">
+<p>This property was initially defined in the {{domxref("ElementTraversal")}} pure interface. As this interface contained two distinct set of properties, one aimed at {{domxref("Node")}} that have children, one at those that are children, they have been moved into two separate pure interfaces, {{domxref("ParentNode")}} and {{domxref("ChildNode")}}. In this case, <code>lastElementChild</code> moved to {{domxref("ParentNode")}}. This is a fairly technical change that shouldn't affect compatibility.</p>
+</div>
+
+<h2 id="Syntax_and_values" name="Syntax_and_values">Синтаксис</h2>
+
+<pre class="syntaxbox">var <em>element</em> = node.lastElementChild; </pre>
+
+<h2 id="Example" name="Example">Пример</h2>
+
+<pre class="brush: html">&lt;ul id="foo"&gt;
+  &lt;li&gt;First  (1)&lt;/li&gt;
+  &lt;li&gt;Second (2)&lt;/li&gt;
+  &lt;li&gt;Third  (3)&lt;/li&gt;
+&lt;/ul&gt;
+
+&lt;script&gt;
+var foo = document.getElementById('foo');
+// yields: Third  (3)
+console.log(foo.lastElementChild.textContent);
+&lt;/script&gt;
+</pre>
+
+<h2 id="Polyfill_for_IE8_IE9_and_Safari">Polyfill for IE8, IE9 and Safari</h2>
+
+<pre class="brush: js">// Overwrites native 'lastElementChild' prototype.
+// Adds Document &amp; DocumentFragment support for IE9 &amp; Safari.
+// Returns array instead of HTMLCollection.
+;(function(constructor) {
+    if (constructor &amp;&amp;
+        constructor.prototype &amp;&amp;
+        constructor.prototype.lastElementChild == null) {
+        Object.defineProperty(constructor.prototype, 'lastElementChild', {
+            get: function() {
+                var node, nodes = this.childNodes, i = nodes.length - 1;
+                while (node = nodes[i--]) {
+                    if (node.nodeType === 1) {
+                        return node;
+                    }
+                }
+                return null;
+            }
+        });
+    }
+})(window.Node || window.Element);
+</pre>
+
+<h2 id="Спецификация">Спецификация</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-parentnode-lastelementchild', 'ParentNode.lastElementChild')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>Splitted the <code>ElementTraversal</code> interface in {{domxref("ChildNode")}} and <code>ParentNode</code>. This method is now defined on the latter.<br>
+    The {{domxref("Document")}} and {{domxref("DocumentFragment")}} implemented the new interfaces.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('Element Traversal', '#attribute-lastElementChild', 'ElementTraversal.lastElementChild')}}</td>
+   <td>{{Spec2('Element Traversal')}}</td>
+   <td>Added its initial definition to the <code>ElementTraversal</code> pure interface and use it on {{domxref("Element")}}.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Совместимость_с_браузерами">Совместимость с браузерами</h2>
+
+<p>{{ CompatibilityTable() }}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Basic support (on {{domxref("Element")}})</td>
+   <td>1.0</td>
+   <td>{{CompatGeckoDesktop("1.9.1")}}</td>
+   <td>9.0</td>
+   <td>10.0</td>
+   <td>4.0</td>
+  </tr>
+  <tr>
+   <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
+   <td>29.0</td>
+   <td>{{CompatGeckoDesktop("25.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>16.0</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Basic support (on {{domxref("Element")}})</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{CompatGeckoMobile("1.9.1")}}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+   <td>{{ CompatVersionUnknown() }}</td>
+  </tr>
+  <tr>
+   <td>Support on {{domxref("Document")}} and {{domxref("DocumentFragment")}} {{experimental_inline}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("25.0")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>16.0</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+
+
+<h2 id="Так_же_смотрите">Так же смотрите</h2>
+
+<ul>
+ <li>The {{domxref("ParentNode")}} and {{domxref("ChildNode")}} pure interfaces.</li>
+ <li>
+  <div class="syntaxbox">Object types implementing this pure interface: {{domxref("Document")}}, {{domxref("Element")}}, and {{domxref("DocumentFragment")}}.</div>
+ </li>
+</ul>