title: Is package.json in angular2 needed in any way to start the application?
body: <p>As I've read in numerous sources, <em>package.json</em> does not affect the start up of the angular2 application or any other applications (React.js app for example).Basically, <em>package.json</em> just provides information (also called as metadata which help developers to know what they have in their application, some kind of summary for the entire application nodules?</p>
  
  <p>Is this correct what I've written?</p>
  
  <p>I've tried to erase some lines and run the application without the entire <em>package.json</em> and the app starts successfully.</p>
  
  <p>In react we had the <em>webpack.config.js</em> but I'm aware that in angular this is hidden and is not meant to be modified. However I feel more comfortable when seeing a file which is connected to the <strong>app build procedure</strong> rather than the background scene doing it for me (like in angular).</p>
  
  <p>Can someone please elaborate and confirm if the above thesis are all correct?</p>