title: How to get constant value in view page which defined in app.js in Node.js
body: <p>At my app.js</p>
  
  <pre><code>var my_constant='Test'
  </code></pre>
  
  <p>I want to get it at my view page =>  my_constant</p>
  
  <p>I don't want to pass my constant via my controller, want to get it direct at view.  </p>