title: JavaScript style: don't use wrapper objects for primitive types
body: <p>In the Google JavaScript style guide, it says not to use wrapper objects for primitive types. It says it's "dangerous" to do so. To prove its point, it uses the example:</p>
  
  <pre><code>var x = new Boolean(false);
  if (x) {
    alert('hi');  // Shows 'hi'.
  }
  </code></pre>
  
  <p>OK, I give up. Why is the if code being executed here?</p>