title: Regarding null & undefined with logical js operators
body: <p>Is there a difference in checking like so:</p>
  
  <pre><code>if (article.geolocation === null || article.geolocation === undefined){...}
  </code></pre>
  
  <p>vs.</p>
  
  <pre><code>if (!article.geolocation){...}
  </code></pre>
  
  <p>I know its a simple question. I am just unsure.</p>
  
  <p>Edit: These two ifs produce different results for me.</p>