nt(len);
  });
}
</code></pre>
<p>In addition to length, the <a href="dart-io/FileSystemEntity/exists.html">exists</a>, <a href="dart-io/File/lastModified.html">lastModified</a>, <a href="dart-io/FileSystemEntity/stat.html">stat</a>, and
other methods, return Futures.</p>
<h2 id="other-resources">Other resources</h2><ul><li>
<p><a href="https://www.dartlang.org/dart-by-example/#files-directories-and-symlinks">Dart by Example</a>
provides additional task-oriented code samples that show how to use
various API