title: What number does 8e3 evaluate to?
body: <p>I encountered this code today:</p>
  
  <pre><code>b = setTimeout(function () {
      // do some javascript stuff here
  }, 8e3)
  </code></pre>
  
  <p>The timeout is set to <code>8e3</code>.  What time does this equate to in milliseconds, and why would anyone choose this strange notation?  The code appears to be fully functional.</p>