title: Angularjs how to get constant in controller
body: <p>How can I get constant in controller.</p>
  
  <pre><code> angular.module('app').register.controller('navigationCtrl', function ($scope, navigationSvc, $STORAGE_KEY) {
      alert($STORAGE_KEY);
  </code></pre>
  
  <p>$STORAGE_KEY is constant variable. I want get it without injecting. I want something like:</p>
  
  <pre><code>angular.constant('$STORAGE_KEY')
  </code></pre>