title: How to parse a json string alert
body: <p>Hi how i can parse this json string: <code>{"Error":true, "data":["not available","somethinghere"]}</code> </p>
  
  <p>but that string i get it from an alert like this:</p>
  
  <p><code>alert(ff.Result.value);</code> </p>
  
  <p>i need to get from that alert just the "not available" from the json string</p>