title: can a value of a key/value pair also be a key?
body: <p><a href="https://i.stack.imgur.com/UgXIu.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>In this example, to log the value of the properties with the keys "title" and "director", obj[key] is used. Since we're already in the execution context of the object: movie, in this example. Obj in "Obj[key]" must refer to title: 'a', and director: 'b' and key to the value of these objects, so "a" and "b" are noted as keys, right?</p>
  
  <p>Can these "key-type" values also be logged with obj[value]?</p>
  
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  <p>This is an example in a course, but the instructor is not explaining it well, so I've probably spent two hours at this point trying to understand the nomenclature. I hope this is correct, and if not; I'd really appreciate whatever misstep I'm making. </p>
  
  <p>Thanks in advance</p>