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| author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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| committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
| commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
| tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/document/head/index.html | |
| parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
| download | translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.gz translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.bz2 translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.zip | |
initial commit
Diffstat (limited to 'files/zh-cn/web/api/document/head/index.html')
| -rw-r--r-- | files/zh-cn/web/api/document/head/index.html | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/files/zh-cn/web/api/document/head/index.html b/files/zh-cn/web/api/document/head/index.html new file mode 100644 index 0000000000..a356a8273b --- /dev/null +++ b/files/zh-cn/web/api/document/head/index.html @@ -0,0 +1,72 @@ +--- +title: Document.head +slug: Web/API/Document/head +translation_of: Web/API/Document/head +--- +<p>{{APIRef}}</p> +<h2 id="Summary" name="Summary">概述</h2> +<p>返回当前文档中的 {{ HTMLElement("head") }} 元素。如果有多个 <code><head></code> 元素，则返回第一个。</p> +<h2 id="Syntax" name="Syntax">语法</h2> +<pre class="syntaxbox"><em>var objRef</em> = document.head; +</pre> +<h2 id="Example" name="Example">示例</h2> +<pre class="brush: js">// HTML部分源码为: <head id="my-document-head"> +var aHead = document.head; + +alert(aHead.id); // "my-document-head"; + +alert( document.head === document.querySelector("head") ); // true +</pre> +<h2 id="Example" name="Example">附注</h2> +<p><code>document.head</code> 是个只读属性，为该属性赋值只会静默失败，如果在严格模式中，则会抛出<code>TypeError</code>异常。</p> +<h2 id="浏览器兼容性">浏览器兼容性</h2> +<div> + {{CompatibilityTable}}</div> +<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>4.0</td> + <td>{{CompatGeckoDesktop("2")}}</td> + <td>9.0</td> + <td>11.0</td> + <td>5.0</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("2")}}</td> + <td>9.0</td> + <td>{{CompatVersionUnknown}}</td> + <td>{{CompatVersionUnknown}}</td> + </tr> + </tbody> + </table> +</div> +<h2 id="Specification" name="Specification">规范</h2> +<ul> + <li><a href="http://www.w3.org/TR/html5/dom.html#dom-tree-accessors" title="http://www.w3.org/TR/html5/dom.html#dom-document-head">HTML5: DOM Tree Accessors</a></li> +</ul> |