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---
title: URL.username
slug: Web/API/URL/username
tags:
- API
- Property
- Reference
- URL
- username
translation_of: Web/API/URL/username
---
<div>{{ApiRef("URL API")}}</div>
<p> {{domxref("URL")}}接口的username属性是{{domxref("USVString")}} ，其中包含域名前指定的<strong><code>username</code></strong> 。</p>
<p>{{AvailableInWorkers}}</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox"><em>string</em> = <em>object</em>.username;
<em>object</em>.username = <em>string</em>;
</pre>
<h3 id="值">值</h3>
<p>一个 {{domxref("USVString")}}.</p>
<h2 id="例子">例子</h2>
<pre class="brush: js">var url = new URL("https://anonymous:flabada@developer.mozilla.org/en-US/docs/Web/API/URL/username");
var user = url.username; // 返回：“anonymous”
</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">说明</th>
</tr>
<tr>
<td>{{SpecName('URL', '#dom-url-username', 'username')}}</td>
<td>{{Spec2('URL')}}</td>
<td>初步定义</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("api.URL.username")}}</p>
<h2 id="参考">参考</h2>
<ul>
<li>所属的 {{domxref("URL")}}接口。</li>
</ul>
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