title: How to add a click event on nvd3.js graph
body: <p>I am using nvd3.js and trying to add a click event </p>
  
  <pre><code>d3.selectAll(".nv-bar").on('click', function () {console.log("test");});
  </code></pre>
  
  <p><a href="http://jsfiddle.net/petran/ZtDv3/17/" rel="noreferrer">JSFiddle</a>    </p>
  
  <p>How can I do that ?</p>