title: Share node_modules between different projects
body: <p>I'm developing various Angular 2 projects and I want to share node_modules folder between multiple projects. I would like to create a structure like this:</p>
  
  <pre><code>MainFolder
  - Project1
  - Project2
  - package.json
  </code></pre>
  
  <p>so I would have just 1 package.json for all the projects. My answer: is it possible to do this?
  If possible, I have to lunch <code>npm install</code> with <code>-g</code>? 
  I can't understand how <code>-g</code> works.
  Can someone give me instructions how to proceed?
  Very thanks</p>
  
  <p>I forgot to say that I build the projects with angular-cli.</p>