title: Double more-than symbol in JavaScript
body: <p>What does this: >> mean in JavaScript?</p>
  
  <p>Seen in this context:</p>
  
  <pre><code>document.onkeydown = document.onkeyup = function(e,v,y,k) {
    (i=e.keyCode-37)&gt;&gt;2 || (keys[i] = e.type[5]&amp;&amp;1||(0))
  }
  </code></pre>