title: How to query a mongoDB object to find if it contain any emoji
body: <p>I have a collection that records comments from users. Something like the below:
  {
  _id:1
  &quot;statusReason&quot; : {
  &quot;text&quot; : {
  &quot;value&quot; :&quot;Hello there &quot;
  }
  }</p>
  <p>}
  I need to write a query that can identify any comments containing any emoji. Please help. Thanks!</p>
  <p>MongoDB version: 3.4.24</p>