title: How to get series's id in Highcharts / Highstock
body: <p>How to get Series's id? In the <a href="http://api.highcharts.com/highstock#Series"><strong>API</strong></a> there is only name and data etc. But don't have id. How could I get id from series?</p>
  
  <p>I'm using the following way to loop all series in chart.</p>
  
  <pre><code>$(chart.series).each(function(i, serie){
  
      // Want to get serie's id
  
  });
  </code></pre>
  
  <p>EDIT:</p>
  
  <p>I found i can get id using the follow way. I'm not sure is it the right way?</p>
  
  <pre><code> $(chart.series).each(function(i, serie){
          console.log(serie.options.id);
  
   });
  </code></pre>