title: ChartJS: How to add empty values?
body: <p>Is it possible to make ChartJS process empty values? </p>
  
  <p>For example, there is a list of labels: </p>
  
  <pre><code>`['January','February','March','April','May','June]`
  </code></pre>
  
  <p>And there is a list of values <code>[1,null,null,5,null,1]</code>.</p>
  
  <p>In this case, I want ChartJS to act that there are no values for February,March and May so it draws lines directly between January and April 
  and June.</p>
  
  <p><a href="https://i.stack.imgur.com/oYJIWm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oYJIWm.png" alt="enter image description here"></a></p>
  
  <p>There are similar questions but they don't want to draw any line under the null values <a href="https://stackoverflow.com/a/30576532/3371056">Like this</a>, I want to draw lines between closest not null values. </p>
  
  <p>This is the graph when there are 0s instead of null values.</p>
  
  <p><a href="https://i.stack.imgur.com/1PtTi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1PtTi.png" alt="enter image description here"></a></p>