title: Pass and read query parameters in angular 2
body: <p>How to pass and read query parameters in angular 2, for example
  <a href="http://localhost:3000/index.html?page=235" rel="nofollow noreferrer">http://localhost:3000/index.html?page=235</a> or <a href="http://localhost:300/?page=235" rel="nofollow noreferrer">http://localhost:300/?page=235</a> to get 235?</p>