/span>
            <span class="name ">readByteSync</span>
(<wbr>)
      
    </section>
    <section class="desc markdown">
      <p>Synchronously reads a single byte from the file. If end-of-file
has been reached -1 is returned.</p>
<p>Throws a <a href="dart-io/FileSystemException-class.html">FileSystemException</a> if the operation fails.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="l