title: Angular 2 ng-build every time when code changed?
body: <p>I developing a MEAN app. In the past I only used Angular and ng-serve was a bless to try code out and develop.</p>
  
  <p>Now in combination with Node.js as a server, that loads Angular in my so-called "public" folder, I have to do "ng build" every time and it does go through all files, even if I just changed a little code on one component Typescript.</p>
  
  <p>My question? What can I do to develop faster using Node.js and Angular 2 without hitting every time "ng build" on changed code?</p>