title: How to loop array one column data
body: <p>I have an array like this.</p>
  
  <pre class="lang-js prettyprint-override"><code>[
      {"Test": "1", "Recommendedby": "3,4,5,6"},
      {"ABC": "2", "Recommendedby": "1,2,3"},
      {"Cvb": "3", "Recommendedby": ""}
  ]
  </code></pre>
  
  <p>Now I need to get the <code>Recommendedby</code> column and I want to this column data means I need to send each number in recommended column data to service to get the username of that <code>userid</code>.</p>
  
  <p>Please tell me how to achieve this.</p>