title: How to extract Min and Max date from Highcharter stock graph?
body: <p>I want to extract the Max and Min date as selected <code>on click</code> of usage of the visualization on highcharter "stock" graph.</p>
  
  <p>Save these dates in a variable to be accessed in another place. 
  How can these dates be accessed ?</p>
  
  <pre><code>highchart(type = "stock") %&gt;%
  hc_add_series(df, hcaes(DateTime, Count),type = "column") %&gt;%
  hc_xAxis(type = "datetime",
  dateTimeLabelFormats = list(day = '%d of %b'))
  </code></pre>
  
  <p>Sample Data:</p>
  
  <pre><code>DateTime            Count
    &lt;dttm&gt;              &lt;int&gt;
  1 2019-01-01 00:00:00     5
  2 2019-01-01 01:00:00     2
  3 2019-01-01 02:00:00     1
  4 2019-01-01 03:00:00     2
  5 2019-01-01 04:00:00     1
  6 2019-01-01 05:00:00     1
  </code></pre>