title: node.js setting a global variable
body: <p>I'm new to node js. I searched a lot on stack overflow on this question below, none what I need.</p>
  
  <p>I have an app.js file which initiates node server and a router file. I want to be able to store a global value once and shared across other server side .js files which contains my functions. I also want this variable to be accessible in my .jade file. (I use express BTW)</p>
  
  <p>Is there a way to accomplish this?</p>
  
  <p>Thanks.</p>