title: How to get a type of scope variable in Angular expression?
body: <p>Let's define simple boolean on the scope:</p>
  
  <pre><code>var mymodal = angular.module('mymodal', []);
  
  mymodal.controller('MainCtrl', function ($scope) {
      $scope.b = false;
  });
  </code></pre>
  
  <p>How can I get type of a variable in the expression? <code>typeOf</code> and <code>Object.prototype.Tostring.call</code> don't work.</p>
  
  <pre><code>&lt;div ng-controller="MainCtrl" class="container"&gt;
          &lt;div&gt;
            {{ b }}
            {{ typeOf(b) }}
            {{ Object.prototype.toString.call(b) }}
          &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Here's JSFiddle: <a href="http://jsfiddle.net/g8Ld80x3/2/" rel="noreferrer">http://jsfiddle.net/g8Ld80x3/2/</a></p>