title: Difference between " and '
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/242813/when-to-use-double-or-single-quotes-in-javascript">When to Use Double or Single Quotes in JavaScript</a><br>
    <a href="https://stackoverflow.com/questions/559752/single-quotes-versus-double-quotes-in-js">single quotes versus double quotes in js</a>  </p>
  </blockquote>
  
  
  
  <p>I'm trying to build a Node.js Express web application, and in the tutorial they use <code>'</code> instead of <code>"</code> quite often, but there is no explanation why.</p>
  
  <p>Can someone please explain the difference?  Is this specific to JavaScript, or does it apply to other languages too?</p>
  
  <p>Example:</p>
  
  <pre><code>app.configure('dev')
  
  app.get("/", function (req, res)
  </code></pre>
  
  <p>Thanks :)</p>