title: How do I get binary byte length in Erlang?
body: <p>If I have the following binary:</p>
  
  <pre><code>&lt;&lt;32,16,10,9,108,111,99,97,108,104,111,115,116,16,170,31&gt;&gt;
  </code></pre>
  
  <p>How can I know what length it has?</p>