---
title: FileReader.error
slug: Web/API/FileReader/error
translation_of: Web/API/FileReader/error
---
<div>{{APIRef("File API")}}</div>

<p>返回读取文件时的错误信息</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">var <var>error</var> = <em>instanceOfFile</em>Reader.error
</pre>

<h2 id="返回值">返回值</h2>

<p>返回一个 {{domxref("DOMError")}}</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("File API", "#FileReader-interface", "FileReader")}}</td>
   <td>{{Spec2("File API")}}</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.FileReader.error")}}

<h2 id="相关链接">相关链接</h2>

<ul>
 <li>{{domxref("FileReader")}}</li>
</ul>