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

<h2 id="總覽">總覽</h2>

<p>回傳讀取檔案時發生的錯誤。</p>

<h2 id="語法">語法</h2>

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

<h2 id="Value">Value</h2>

<p>A {{domxref("DOMError")}}</p>

<h2 id="規格">規格</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="瀏覽器相容性">瀏覽器相容性</h2>

{{Compat("api.FileReader.error")}}

<h2 id="閱讀更多">閱讀更多</h2>

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