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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: URL.host
+slug: Web/API/URL/host
+translation_of: Web/API/URL/host
+---
+<div>{{ApiRef("URL API")}}</div>
+
+<p>{{domxref("URL")}} 接口的 <strong><code>host</code></strong> 属性是一个 {{domxref("USVString")}} 值,包含了主机信息,也就是 <em>主机名(hostname)</em>,还有,如果 URL 接口不为空,也会包含冒号 <code>':'</code> 和 URL 的 <em>端口(port)</em>。</p>
+
+<p>{{AvailableInWorkers}}</p>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox"><em>string</em> = <em>object</em>.host;
+<em>object.<code>host</code></em> = <em>string</em>;
+</pre>
+
+<p> </p>
+
+<h3 id="返回值">返回值</h3>
+
+<p>{{domxref("USVString")}}.</p>
+
+<p> </p>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">var url = new URL('https://developer.mozilla.org/en-US/docs/Web/API/URL/host');
+var result = url.host // "developer.mozilla.org"
+
+var url = new URL('https://developer.mozilla.org:443/en-US/docs/Web/API/URL/host');
+var result = url.host // "developer.mozilla.org"
+// The port number is not included because 443 is the scheme's default port
+
+var url = new URL('https://developer.mozilla.org:4097/en-US/docs/Web/API/URL/host');
+var result = url.host // "developer.mozilla.org:4097"
+</pre>
+
+<h2 id="详情">详情</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('URL', '#dom-url-host', 'URL.host')}}</td>
+ <td>{{Spec2('URL')}}</td>
+ <td>初始定义</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容">浏览器兼容</h2>
+
+<div class="hidden">本页面的兼容性表格是由结构化数据生成的。如果你愿意为这些数据做点贡献,请在 github <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> 检出代码,然后发送 pull request 给我们。</div>
+
+<p>{{Compat("api.URL.host")}}</p>
+
+<h2 id="参考">参考</h2>
+
+<ul>
+ <li>所属的 {{domxref("URL")}} 接口。</li>
+</ul>