title: How to use System.getProperty("user.home") in Extjs
body: <p>As we know we can use System.getProperty("user.home") method in java and it returns some specific path.
  Can we do this in Ext JS to get the same path as like java does, if not then what is the way to achieve this, is there is some function as like java in Ext JS?
  Thanks in advance.</p>