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---
title: Document.queryCommandState()
slug: Web/API/Document/queryCommandState
translation_of: Web/API/Document/queryCommandState
---
<div>{{ApiRef("DOM")}}</div>
<h2 id="语法">语法</h2>
<pre class="brush: js">Object.queryCommandState(String command)
</pre>
<h2 id="描述">描述</h2>
<p>返回 指定命令 在对象内的状态码（1表示指定命令在对象内已执行；0表示指定命令在对象内未执行，处于可执行状态；-1表示指定命令在对象内处于不可用状态）</p>
<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('HTML Editing','#execcommand()','execCommand')}}</td>
<td>{{Spec2('HTML Editing')}}</td>
<td>Initial definition</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
{{Compat("api.Document.queryCommandState")}}
<h2 id="参见">参见</h2>
<ul>
<li>{{domxref("document.contentEditable")}}</li>
<li>{{domxref("document.designMode")}}</li>
<li><a href="/en-US/docs/Rich-Text_Editing_in_Mozilla">Rich-Text Editing in Mozilla</a></li>
<li>Browser bugs related to <code>queryCommandState()</code>: <a href="https://github.com/guardian/scribe/blob/master/BROWSERINCONSISTENCIES.md#documentquerycommandstate">Scribe's "Browser Inconsistencies" documentation</a></li>
</ul>
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