title: Plotly javascript. 'plotly_click' gets on is not a function
body: <p>I am attempting to create an onclick event on my plotly chart. Following the documentation i have created the following chart:</p>
  
  <pre><code>var graphDiv = document.getElementById('uniqueId');
  Plotly.newPlot('uniqueId', charData, layout);
  graphDiv.on('plotly_click', function (data) {
      var i = 0;
  })
  </code></pre>
  
  <p>However when i run this i get the following error:</p>
  
  <pre><code>graphDiv.on is not a function
  </code></pre>
  
  <p>So can anyone tell me what im doing wrong?</p>
  
  <p>Note i have also attempted with jquery:</p>
  
  <pre><code>$('#uniqueId').on('plotly_click', function(){})
  </code></pre>
  
  <p>This didnt throw an error but the function was not called when clicking the chart.</p>
  
  <p>fiddle:</p>
  
  <p><a href="https://jsfiddle.net/c1kt3r82/127/" rel="nofollow noreferrer">https://jsfiddle.net/c1kt3r82/127/</a></p>