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diff --git a/files/zh-cn/web/api/domimplementation/createdocument/index.html b/files/zh-cn/web/api/domimplementation/createdocument/index.html
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@@ -0,0 +1,83 @@
+---
+title: DOMImplementation.createDocument()
+slug: Web/API/DOMImplementation/createDocument
+translation_of: Web/API/DOMImplementation/createDocument
+---
+<p>{{ApiRef("DOM")}}</p>
+
+<p><strong><code>DOMImplementation.createDocument()</code>方法创建并返回一个</strong> {{domxref("XMLDocument")}}对象.</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox"><em>doc</em> = document.implementation.createDocument(<em>namespaceURI</em>, <em>qualifiedNameStr</em>, <em>documentType</em>);</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt><em>namespaceURI</em></dt>
+ <dd>被创建的{{domxref("DOMString")}} 文档的namespace URI 是namespace URI ,如果文档不属于任何namespace URI 就为<code>null</code>.</dd>
+</dl>
+
+<dl>
+ <dt><em>qualifiedNameStr </em></dt>
+ <dd> {{domxref("DOMString")}} 是否包含要创建文档的限定名称，即可选的前缀和冒号，以及本地的根元素。</dd>
+</dl>
+
+<dl>
+ <dt><em>documentType </em>{{optional_inline}}</dt>
+ <dd>文档的 <code><a class="internal" href="/En/DOM/DocumentType" title="En/DOM/DocumentType">DocumentType</a> </code>默认为null.</dd>
+</dl>
+
+<ul>
+</ul>
+
+<h2 id="例子">例子</h2>
+
+<pre class="brush: js">var doc = document.implementation.createDocument ('http://www.w3.org/1999/xhtml', 'html', null);
+var body = document.createElementNS('http://www.w3.org/1999/xhtml', 'body');
+body.setAttribute('id', 'abc');
+doc.documentElement.appendChild(body);
+alert(doc.getElementById('abc')); // [object HTMLBodyElement]
+</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">备注</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-domimplementation-createdocument', 'DOMImplementation.createDocument')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}[现时标准]</td>
+   <td>
+    <p>将<code>createDocument()</code> 的返回类型从 {{domxref("Document")}} 修改为{{domxref("XMLDocument")}}.<br>
+     <code>createDocument()</code>的第三个参数,文档类型,现在是可选的,默认为<code>null</code>.</p>
+   </td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM3 Core', 'core.html#Level-2-Core-DOM-createDocument', 'DOMImplementation.createDocument')}}</td>
+   <td>{{Spec2('DOM3 Core')}}[过时]</td>
+   <td>自{{SpecName("DOM2 Core")}}无改变</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM2 Core', 'core.html#Level-2-Core-DOM-createDocument', 'DOMImplementation.createDocument')}}</td>
+   <td>{{Spec2('DOM2 Core')}}[过时]</td>
+   <td>初始定义.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器支持">浏览器支持</h2>
+
+<div class="hidden">本页的兼容性表由结构化数据生成.如果你想对数据做出贡献,请查看 <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> 并发送给我们一个拉取请求.</div>
+
+<p>{{Compat("api.DOMImplementation.createDocument")}}</p>
+
+<h2 id="另请参见">另请参见</h2>
+
+<ul>
+ <li>归属它的 {{domxref("DOMImplementation")}} 接口.</li>
+</ul>
diff --git a/files/zh-cn/web/api/domimplementation/createdocumenttype/index.html b/files/zh-cn/web/api/domimplementation/createdocumenttype/index.html
new file mode 100644
index 0000000000..13e290d87c
--- /dev/null
+++ b/files/zh-cn/web/api/domimplementation/createdocumenttype/index.html
@@ -0,0 +1,78 @@
+---
+title: DOMImplementation.createDocumentType()
+slug: Web/API/DOMImplementation/createDocumentType
+tags:
+  - DOM
+  - DOMImplementation
+translation_of: Web/API/DOMImplementation/createDocumentType
+---
+<p>{{ ApiRef("DOM")}}</p>
+
+<p><strong><code>DOMImplementation.createDocumentType()</code></strong> 方法返回一个 {{domxref("DocumentType")}} 对象，它可以在文档创建时用在 {{domxref("DOMImplementation.createDocument")}} ，或者通过{{domxref("Node.insertBefore()")}} 或 {{domxref("Node.replaceChild()")}} 等方法放在文档中。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var <em>doctype</em> = document.implementation.createDocumentType(<em>qualifiedNameStr</em>, <em>publicId</em>, <em>systemId</em>);</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt><code>qualifiedNameStr</code></dt>
+ <dd> {{domxref("DOMString")}} 类型的值，包含一个合规的名称，如 <code>svg:svg</code>。</dd>
+</dl>
+
+<dl>
+ <dt><code>publicId</code></dt>
+ <dd> {{domxref("DOMString")}} 类型的值， 包含 <code>PUBLIC</code> 标识符。</dd>
+</dl>
+
+<dl>
+ <dt><code>systemId</code></dt>
+ <dd> {{domxref("DOMString")}} 类型的值，包含 <code>SYSTEM</code> 标识符。</dd>
+</dl>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">var dt = document.implementation.createDocumentType('svg:svg', '-//W3C//DTD SVG 1.1//EN', 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd');
+var d = document.implementation.createDocument('http://www.w3.org/2000/svg', 'svg:svg', dt);
+alert(d.doctype.publicId); // -//W3C//DTD SVG 1.1//EN
+</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">备注</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM WHATWG', '#dom-domimplementation-createdocumenttype', 'DOMImplementation.createDocumentType')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>与 {{SpecName("DOM3 Core")}}相比无改动</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM3 Core', 'core.html#Level-2-Core-DOM-createDocType', 'DOMImplementation.createDocumentType')}}</td>
+   <td>{{Spec2('DOM3 Core')}}</td>
+   <td>与 {{SpecName("DOM2 Core")}} 相比无改动</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM2 Core', 'core.html#Level-2-Core-DOM-createDocType', 'DOMImplementation.createDocumentType')}}</td>
+   <td>{{Spec2('DOM2 Core')}}</td>
+   <td>初次定义</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+<div class="hidden">这个页面的兼容性表格是由结构数据生成。如果你想对数据作出贡献，详情请前往 <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> 并给我们一个PR。</div>
+
+<p>{{Compat("api.DOMImplementation.createDocumentType")}}</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>该方法所属的接口 {{domxref("DOMImplementation")}}</li>
+</ul>
diff --git a/files/zh-cn/web/api/domimplementation/createhtmldocument/index.html b/files/zh-cn/web/api/domimplementation/createhtmldocument/index.html
new file mode 100644
index 0000000000..558f4bad6c
--- /dev/null
+++ b/files/zh-cn/web/api/domimplementation/createhtmldocument/index.html
@@ -0,0 +1,92 @@
+---
+title: DOMImplementation.createHTMLDocument
+slug: Web/API/DOMImplementation/createHTMLDocument
+translation_of: Web/API/DOMImplementation/createHTMLDocument
+---
+<p>{{ApiRef("DOM")}}{{SeeCompatTable}}</p>
+
+<h3 id="概述">概述</h3>
+
+<p>该方法 (属于<a class="internal" href="/zh-cn/DOM/document.implementation" title="zh-cn/DOM/Document.implementation"><code>document.implementation</code></a>) 用来创建一个新的HTML文档.</p>
+
+<h3 id="语法">语法</h3>
+
+<pre>var doc = document.implementation.createHTMLDocument(title);
+</pre>
+
+<ul>
+ <li><code>doc</code> 是新建的HTML文档.</li>
+ <li><code>title</code> 是doc中的title标签中的文本.</li>
+</ul>
+
+<h3 id="例子">例子</h3>
+
+<p>下面的例子演示如何创建了一个新的HTML文档,并把它插入到当前文档的一个{{ HTMLElement("iframe") }}中.</p>
+
+<p><a href="/samples/domref/createHTMLDocument.html">查看在线演示</a></p>
+
+<p>例子中的HTML代码如下:</p>
+
+<pre class="brush: html">&lt;body&gt;
+  &lt;p&gt;Click &lt;a href="javascript:makeDocument()"&gt;here&lt;/a&gt; to create a new document and insert it below.&lt;/p&gt;
+  &lt;iframe id="theFrame" src="about:blank" /&gt;
+&lt;/body&gt;
+</pre>
+
+<p>例子中用JavaScript实现的<code>makeDocument()</code>方法如下:</p>
+
+<pre class="brush: js">function makeDocument() {
+  var frame = document.getElementById("theFrame");
+
+  var doc = document.implementation.createHTMLDocument("New Document");
+  var p = doc.createElement("p");
+  p.innerHTML = "This is a new paragraph.";
+
+  try {
+    doc.body.appendChild(p);
+  } catch(e) {
+    console.log(e);
+  }
+
+  // 将新建的HTML文档放到iframe中.
+
+  var destDocument = frame.contentDocument;
+  var srcNode = doc.documentElement;
+  var newNode = destDocument.importNode(srcNode, true);
+
+  destDocument.replaceChild(newNode, destDocument.documentElement);
+}
+</pre>
+
+<p>代码 4-12 行创建了一个新的HTML文档,并在里面插入一些内容. 第4行 <code>createHTMLDocument()</code>构造了一个标题为"New Document"的HTML文档. 5-6行创建了一个段落元素并在里面插入了一些内容, 8-12行将新建的段落元素插入到HTML文档中.</p>
+
+<p>16行获取了iframe的<code>contentDocument</code> 属性.这是我们将要插入新建的HTML文档的地方. 下面的两行将新建的HTML文档插入到了iframe的根元素中.这样,我们用20行代码实现了用一个新建的HTML文档替换iframe中原有文档的目的.</p>
+
+<h3 id="备注">备注</h3>
+
+<p>新生成的HTML文档有如下的初始结构:</p>
+
+<pre class="brush: html">&lt;!doctype html&gt;
+&lt;html&gt;
+&lt;head&gt;
+&lt;title&gt;<em>title</em>&lt;/title&gt;
+&lt;/head&gt;
+&lt;body&gt;
+&lt;/body&gt;
+&lt;/html&gt;
+</pre>
+
+<p>译者注:</p>
+
+<pre>alert(document.implementation.createHTMLDocument("myTitle").documentElement.outerHTML)
+
+//&lt;html&gt;&lt;head&gt;&lt;title&gt;myTitle&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;/body&gt;&lt;/html&gt;
+</pre>
+
+<h3 id="规范">规范</h3>
+
+<ul>
+ <li><a class="external" href="http://www.whatwg.org/html/#dom-domhtmlimplementation-createhtmldocument" title="http://www.whatwg.org/html/#dom-domhtmlimplementation-createhtmldocument"><code>createHTMLDocument</code> specification</a></li>
+</ul>
+
+<p>{{ languages( { "en": "en/DOM/DOMImplementation.createHTMLDocument" } ) }}</p>
diff --git a/files/zh-cn/web/api/domimplementation/hasfeature/index.html b/files/zh-cn/web/api/domimplementation/hasfeature/index.html
new file mode 100644
index 0000000000..daa355c026
--- /dev/null
+++ b/files/zh-cn/web/api/domimplementation/hasfeature/index.html
@@ -0,0 +1,117 @@
+---
+title: DOMImplementation.hasFeature
+slug: Web/API/DOMImplementation/hasFeature
+translation_of: Web/API/DOMImplementation/hasFeature
+---
+<p>{{ApiRef("DOMImplementation")}}</p>
+<p>The <strong><code>DOMImplementation.hasFeature()</code></strong> method returns a {{domxref("Boolean")}} flag indicating if a given feature is supported.</p>
+<p>The different implementation fairly diverged in what kind of features was reported. The latest version of the spec settled to force this method to always return <code>true</code>, except for SVG features, where the functionnality was accurate and in use.</p>
+<h2 id="Syntax">Syntax</h2>
+<pre class="syntaxbox"><em>flag</em> = document.implementation.hasFeature(<em>feature</em>, <em>version</em>);</pre>
+<h3 id="Parameters">Parameters</h3>
+<dl>
+ <dt>
+  <em>feature</em></dt>
+ <dd>
+  Is a {{domxref("DOMString")}} representing the feature name.</dd>
+ <dt>
+  <em>version</em></dt>
+ <dd>
+  Is a {{domxref("DOMString")}} representing the version of the specification defining the feature.</dd>
+</dl>
+<h2 id="Specifications">Specifications</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-domimplementation-hasfeature', 'DOMImplementation.hasFeature')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>Modified to always return <code>true</code> except for SVG features.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM3 Core', 'core.html#ID-5CED94D7', 'DOMImplementation.hasFeature')}}</td>
+   <td>{{Spec2('DOM3 Core')}}</td>
+   <td>No change from {{SpecName("DOM2 Core")}}</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM2 Core', 'core.html#ID-5CED94D7', 'DOMImplementation.hasFeature')}}</td>
+   <td>{{Spec2('DOM2 Core')}}</td>
+   <td>No change from {{SpecName("DOM1")}}</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM1', 'level-one-core.html#ID-5CED94D7', 'DOMImplementation.hasFeature')}}</td>
+   <td>{{Spec2('DOM2 Core')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+ </tbody>
+</table>
+<h2 id="Browser_compatibility">Browser compatibility</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</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatGeckoDesktop("1.0")}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+   </tr>
+   <tr>
+    <td>Always <code>true</code> for non-SVG features.</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatGeckoDesktop("19.0")}}</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatUnknown}}</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</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatGeckoMobile("1.0")}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+    <td>{{CompatVersionUnknown}}</td>
+   </tr>
+   <tr>
+    <td>Always <code>true</code> for non-SVG features.</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatGeckoMobile("19.0")}}</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatUnknown}}</td>
+    <td>{{CompatUnknown}}</td>
+   </tr>
+  </tbody>
+ </table>
+</div>
+<h2 id="See_also">See also</h2>
+<ul>
+ <li>The {{domxref("DOMImplementation")}} interface it belongs to.</li>
+</ul>
diff --git a/files/zh-cn/web/api/domimplementation/index.html b/files/zh-cn/web/api/domimplementation/index.html
new file mode 100644
index 0000000000..65cf86e62a
--- /dev/null
+++ b/files/zh-cn/web/api/domimplementation/index.html
@@ -0,0 +1,189 @@
+---
+title: DOMImplementation
+slug: Web/API/DOMImplementation
+tags:
+  - API
+  - DOM
+  - Interface
+  - Reference
+translation_of: Web/API/DOMImplementation
+---
+<p>{{ ApiRef("DOM") }}</p>
+
+<p><code style="font-style: normal; line-height: 1.5;"><strong>DOMImplementation</strong></code><span style="line-height: 1.5;"> 接口代表了一个对象，这个对象提供了不依赖于任何document的方法。这个对象可以通过{{domxref("Document.implementation")}}属性获得</span></p>
+
+<h2 id="属性">属性</h2>
+
+<p><em>这个接口没有特定的属性，并且也没有继承到任何属性。</em></p>
+
+<h2 id="方法">方法</h2>
+
+<p><em>没有继承的方法</em></p>
+
+<dl>
+ <dt>{{domxref("DOMImplementation.createDocument()")}}</dt>
+ <dd>创建并返回一个 {{domxref("XMLDocument")}}对象.</dd>
+ <dt>{{domxref("DOMImplementation.createDocumentType()")}}</dt>
+ <dd>创建并返回一个 {{domxref("DocumentType")}}对象.</dd>
+ <dt>{{domxref("DOMImplementation.createHTMLDocument()")}}</dt>
+ <dd>创建并返回一个 {{domxref("Document")}}对象.</dd>
+ <dt>{{domxref("DOMImplementation.hasFeature()")}}</dt>
+ <dd>返回一个是否支持所给定特性的{{domxref("Boolean")}}值。这个方法是不可靠的，仅用于兼容性目的：除了SVG相关的查询，它总是返回 <code>true</code>。旧浏览器的行为非常不一致</dd>
+ <dd>Returns a {{domxref("Boolean")}} indicating if a given feature is supported or not. This function is unreliable and kept for compatibility purpose alone: except for SVG-related queries, it always returns <code>true</code>. Old browsers are very inconsistent in their behavior.</dd>
+</dl>
+
+<h2 id="规范">规范</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', '#domimplementation', 'DOMImplementation')}}</td>
+   <td>{{Spec2('DOM WHATWG')}}</td>
+   <td>Removed the <code>getFeature()</code> method.<br>
+    Added the <code>createHTMLDocument()</code> method.<br>
+    Modified the return type of <code>createDocument()</code> from {{domxref("Document")}} to {{domxref("XMLDocument")}}.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM3 Core', 'core.html#ID-102161490', 'DOMImplementation')}}</td>
+   <td>{{Spec2('DOM3 Core')}}</td>
+   <td>Added the <code>getFeature()</code> method (never implemented by any user agent).</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM2 Core', 'core.html#ID-102161490', 'DOMImplementation')}}</td>
+   <td>{{Spec2('DOM2 Core')}}</td>
+   <td>Added the <code>createDocument()</code> and <code>createDocumentType()</code> methods.</td>
+  </tr>
+  <tr>
+   <td>{{SpecName('DOM1', 'level-one-core.html#ID-102161490', 'DOMImplementation')}}</td>
+   <td>{{Spec2('DOM1')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</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</td>
+   <td>1.0</td>
+   <td>{{CompatGeckoDesktop("1.0")}}</td>
+   <td>6.0</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createHTMLDocument()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop("2.0")}}</td>
+   <td>9.0</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createDocument()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop("1.0")}}</td>
+   <td>9.0</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>hasFeature()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop("1.0")}} [1]</td>
+   <td>6.0</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createDocumentType()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop("1.0")}}</td>
+   <td>9.0</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</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</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("1.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createHTMLDocument()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("2.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createDocument()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("1.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>hasFeature()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("1.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+  <tr>
+   <td><code>createDocumentType()</code></td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoMobile("1.0")}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] Since Gecko 19, <code>hasFeature()</code> mostly returns <code>true</code>.</p>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li><a href="/en-US/docs/DOM/DOM_Reference" title="/en-US/docs/DOM/DOM_Reference">The DOM interfaces index.</a></li>
+</ul>