title: Populate JSON query result in MongoDB
body: <p>I need to partially populate search result done with MongoDB.</p>
  <p>Search is based on statistics data saved in MongoDB, but within range it may someday not value and need to fill with pair: missing date: zero</p>
  <p>Example this result, on 2021-06-23 there is no data, so I need to populate with 2021-06-23.</p>
  <p>Is there any way to populate direct when doing the find on MongoDB? Or using Javascript?</p>
  <p><a href="https://i.stack.imgur.com/iBzeQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iBzeQ.png" alt="enter image description here" /></a></p>