title: operator "it" in kotlin. PopupMenu(this, it)
body: <p>I have this line of code and I can not find any information what does mean operator "it" which is in brackets. How does "it" usually used?
  val popupMenu = PopupMenu(this, it)</p>
  
  <p>The tutorial where I found this line of code (time - 3:20) <a href="https://www.youtube.com/watch?v=ncHjCsoj0Ws" rel="nofollow noreferrer">https://www.youtube.com/watch?v=ncHjCsoj0Ws</a></p>