title: how to reload the nodejs app after making changes to the file?
body: <p>i have a simple js file with http module to test <code>Hello node</code> for nodejs....</p>
  
  <p>below is the <code>http_test.js</code> file</p>
  
  <pre><code>var http = require('http');
  
  http.createServer(function(req, res) {
      res.writeHead(200);
      res.end('hello node');
  }).listen(8080);
  </code></pre>
  
  <p><code>node http_test.js</code> prints fine on the browser...now if i change my response line to say <code>res.end('changed hello node to hello stoner');</code>, i still get previous <code>hello node</code> on my page....</p>
  
  <p>to get the changed line i got to end the current instance of node and then again run
  <code>node http_test.js</code></p>
  
  <p>if i make any changes to js file should i restart over?</p>
  
  <p>wouldnt just hitting refresh on my browser do it?</p>