title: Play 2.3: How to count json child nodes?
body: <p>I have this json:</p>
  
  <pre><code>{
    "errors": {
      "password": [
        "This field is required"
      ],
      "email": [
        "This field is required"
      ]
    }
  }
  </code></pre>
  
  <p>How do I count child nodes under "errors" node?</p>