title: How to check if a json string is valid or not in JavaScript or Jquery?
body: <p>Have tried :</p>
  
  <pre><code>function isJSON(str) {
      try {
          JSON.parse(str);
      } catch (e) {
          return false;
      }
      return true;
  }
  </code></pre>
  
  <p>To check weather a string is json or not. It returns true for boolean type formats.</p>
  
  <p>Is there any possible way to identify a valid json string in Java Script or in JQuery?</p>