title: Javascript/Jquery Convert string to array
body: <p>i have a string </p>
  
  <pre><code>var traingIds = "${triningIdArray}";  // ${triningIdArray} this value getting from server 
  alert(traingIds)  // alerts [1,2]
  var type = typeof(traingIds ) 
  alert(type)   // // alerts String
  </code></pre>
  
  <p>now i want to convert this to array so that i can iterate</p>
  
  <p>i tried </p>
  
  <pre><code>var trainindIdArray = traingIds.split(',');
  $.each(trainindIdArray, function(index, value) { 
      alert(index + ': ' + value);   // alerts 0:[1 ,  and  1:2]
  });
  </code></pre>
  
  <p>how to resolve this?</p>