title: Do I have to reload app.js every time I make a small change?
body: <p>When I start up my application in node.js</p>
  
  <pre><code>node app.js
  </code></pre>
  
  <p>and then make a change in app.js file, I have to exit node.js and restart it in order for this change to show up in my browser.</p>
  
  <p>Is node.js caching the file at startup? Is there a way to avoid this, at least in development mode?</p>