title: Angular.js filter by exact values (strict equality)
body: <p>I have following html code</p>
  
  <pre><code>  &lt;ul ng-repeat="friend in friends | filter: { age: '2' } | orderBy: 'name' "&gt;
     &lt;li&gt;{{friend.name}}&lt;/li&gt;
    &lt;/ul&gt;
  </code></pre>
  
  <p>Here is my $scope variable</p>
  
  <pre><code> $scope.friends = [
  { name: "Peter",   age: 2 },
  { name: "Pablo",   age: 55 },
  { name: "Linda",   age: 20 },
  { name: "Marta",   age: 37 },
  { name: "Othello", age: 20 },
  { name: "Markus",  age: 32 }
  ];
  </code></pre>
  
  <p>It returns </p>
  
  <pre><code>Linda
  Markus
  Othello
  Peter
  </code></pre>
  
  <p>How the comparison work in ng filter and How do i get friend having age 2 only </p>
  
  <pre><code>Peter
  </code></pre>