Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
<input type="text" id="txt"  />
<br/>
<input type="button" id="btn" onclick="processString()" value ="process string"/>
<br/>
  <textarea id="textarea" rows="4" columns="30"></textarea>
<script id="jsbin-javascript">
function processString (){
  document.getElementById('textarea').value="";
  var string = document.getElementById('txt').value;
  var result= string.match(/\d+/g);
  if (result!=null)
    {
      for(var i=0; i<result.length;i++)
        {

  document.getElementById('textarea').value+=result[i]+"\r\n";
        }
    }
}
</script>


<script id="jsbin-source-javascript" type="text/javascript">function processString (){
  document.getElementById('textarea').value="";
  var string = document.getElementById('txt').value;
  var result= string.match(/\d+/g);
  if (result!=null)
    {
      for(var i=0; i<result.length;i++)
        {

  document.getElementById('textarea').value+=result[i]+"\r\n";
        }
    }
}</script></body>
</html>