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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: HTMLSelectElement.remove()
+slug: Web/API/HTMLSelectElement/remove
+translation_of: Web/API/HTMLSelectElement/remove
+---
+<div>{{ APIRef("HTML DOM") }}</div>
+
+<p><code><strong>HTMLSelectElement.remove()</strong></code> 方法从一个 select 元素中删除指定序数的 option 元素。没有传参时为删除当前元素本身:<a href="/en-US/docs/Web/API/ChildNode/remove">ChildNode.remove()</a>。</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox"><em>collection</em>.remove(<em>index</em>);
+</pre>
+
+<h3 id="参数">参数</h3>
+
+<ul>
+ <li><code>index</code><em> </em>是从 option {{ domxref("HTMLOptionElement") }} 集合中要移除元素的序数。如果序数对应的元素不存在,调用这个方法就没有任何效果。</li>
+</ul>
+
+<dl>
+</dl>
+
+<h2 id="例子">例子</h2>
+
+<pre class="brush: js">var sel = document.getElementById("existingList");
+sel.remove(1);
+
+/*
+ 上面的代码会将下面的 select 元素结构:
+
+ &lt;select id="existingList" name="existingList"&gt;
+ &lt;option value="1"&gt;Option: Value 1&lt;/option&gt;
+ &lt;option value="2"&gt;Option: Value 2&lt;/option&gt;
+ &lt;option value="3"&gt;Option: Value 3&lt;/option&gt;
+ &lt;/select&gt;
+
+ 变成这样:
+
+ &lt;select id="existingList" name="existingList"&gt;
+ &lt;option value="1"&gt;Option: Value 1&lt;/option&gt;
+ &lt;option value="3"&gt;Option: Value 3&lt;/option&gt;
+ &lt;/select&gt;
+*/
+</pre>
+
+<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('HTML WHATWG', '#dom-select-remove', 'HTMLSelectElement.remove()')}}</td>
+ <td>{{Spec2('HTML WHATWG')}}</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>{{SpecName('HTML5 W3C', 'forms.html#dom-select-remove', 'HTMLSelectElement.remove()')}}</td>
+ <td>{{Spec2('HTML5 W3C')}}</td>
+ <td>Is a snapshot of {{SpecName("HTML WHATWG")}}.</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM2 HTML', 'html.html#ID-33404570', 'HTMLSelectElement.remove()')}}</td>
+ <td>{{Spec2('DOM2 HTML')}}</td>
+ <td></td>
+ </tr>
+ <tr>
+ <td>{{SpecName('DOM1', 'level-one-html.html#ID-33404570', 'HTMLSelectElement.remove()')}}</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 class="hidden">The compatibility table in 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>
+
+<p>{{Compat("api.HTMLSelectElement.remove")}}</p>
+
+<h2 id="参考">参考</h2>
+
+<ul>
+ <li>{{ domxref("ChildNode.remove") }},当没有参数时 {{ domxref("HTMLSelectElement") }} 调用的是这个方法</li>
+ <li>{{domxref("HTMLSelectElement") }} 实现了这个方法。</li>
+</ul>
+
+<p>
+ <audio style="display: none;"></audio>
+</p>