title: What << does in Math.random() * Math.pow(36, 2) << 0
body: <p>Wondering what the <code>&lt;&lt;</code> does in this:</p>
  
  <pre><code>Math.random() * Math.pow(36, 2) &lt;&lt; 0
  </code></pre>
  
  <p>Not sure how to use that in practice.</p>