title: How to iterate JSON object in Angular 2?
body: <p>Let's say I have a JSON like this:</p>
  
  <pre><code>{
      "A": [
              {"name": "Aa", "count": "21"},
              {"name": "Ab", "count": "54"}
           ],
  
      "B": [
              {"name": "Ba", "count": "30"},
              {"name": "Bb", "count": "22"}
           ],
  
      "C": [
              {"name": "Ca", "count": "40"},
              {"name": "Cb", "count": "33"}
           ],
  }
  </code></pre>
  
  <p>Output HTML should like this:</p>
  
  <pre><code>[A]
  Aa 21
  Ab 54
  
  [B]
  Ba 30
  Bb 22
  
  [C]
  Ca 40
  Cb 33
  </code></pre>
  
  <p>How can I iterate using <strong>angular2 Beta</strong> version?</p>