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---
title: FileSystemDirectoryReader
slug: Web/API/FileSystemDirectoryReader
tags:
- API
- File System API
- File and Directory Entries API
- FileSystemDirectoryReader
- Files
- Interface
- NeedsTranslation
- Non-standard
- Offline
- Reference
- TopicStub
translation_of: Web/API/FileSystemDirectoryReader
---
<p>{{APIRef("File System API")}}{{Non-standard_header}}</p>
<p>The <code>FileSystemDirectoryReader</code> interface of the <a href="/en-US/docs/Web/API/File_and_Directory_Entries_API">File and Directory Entries API</a> lets you access the {{domxref("FileEntry")}}-based objects (generally {{domxref("FileSystemFileEntry")}} or {{domxref("FileSystemDirectoryEntry")}}) representing each entry in a directory.</p>
<div class="note">
<p>Because this is a non-standard API, whose specification is not currently on a standards track, it's important to keep in mind that not all browsers implement it, and those that do may implement only small portions of it. Check the <a href="#browser_compatibility">Browser compatibility</a> section for details.</p>
</div>
<h2 id="Methods">Methods</h2>
<dl>
<dt>{{domxref("FileSystemDirectoryReader.readEntries", "readEntries()")}}</dt>
<dd>Returns a an array containing some number of the directory's entries. Each item in the array is an object based on {{domxref("FileSystemEntry")}}—typically either {{domxref("FileSystemFileEntry")}} or {{domxref("FileSystemDirectoryEntry")}}.</dd>
</dl>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<thead>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
</thead>
<tbody>
<tr>
<td>{{SpecName('File System API')}}</td>
<td>{{Spec2('File System API')}}</td>
<td>Draft of proposed API</td>
</tr>
</tbody>
</table>
<p>This API has no official W3C or WHATWG specification.</p>
<h2 id="Browser_compatibility" name="Browser_compatibility">Browser compatibility</h2>
<p>{{Compat("api.FileSystemDirectoryReader")}}</p>
<h2 id="See_also">See also</h2>
<ul>
<li><a href="/en-US/docs/Web/API/File_and_Directory_Entries_API">File and Directory Entries API</a></li>
<li><a href="/en-US/docs/Web/API/File_and_Directory_Entries_API/Introduction">Introduction to the File System API</a></li>
<li>{{domxref("FileSystemDirectoryEntry")}}</li>
<li>{{domxref("FileSystem")}}</li>
</ul>
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