title: How to add text in textarea using jquery without removing previous text
body: <p>How to add text in textarea using jquery without removing previous text.</p>
  
  <pre><code>    $('.btn-uservar').on('click', function (){             
  
           var insertText = $('#uservar').val();                           
           $('#template').append(" "+insertText);
  
      });
  </code></pre>
  
  <p>But it only works for first time.when i click again it does nothing.</p>