title: Learning node.js/express.js: What's the deal with bin/www?
body: <p>I've seen tutorials for express.js such as <a href="https://youtu.be/6IJu57l_Wuw" rel="noreferrer">this</a> which starts from scratch with their own <code>app.js</code> file and forgoes using the express generator.</p>
  
  <p>My question: for beginner who's trying to grasp just how to use these tools and make a basic web application should I be concerned with <code>bin/www</code> or should I just be defining the port within <code>app.js</code>?</p>
  
  <p>The only functionality I currently understand in <code>bin/www</code> is setting the port. Is the express generator simply bloated with edge case functionality which is too much for a beginner?</p>