title: Angular2 with matrix url notation
body: <p>Is the matrix url notation the "default" to creating urls with parameters or is better to use the "old" notation with ? and &amp;. I didn't understand it on the angular.io documentation</p>
  
  <pre><code>localhost:3000/heroes;id=15;foo=foo
  </code></pre>
  
  <p>or</p>
  
  <pre><code>localhost:3000/heroes?id=15&amp;foo=foo
  </code></pre>