title: Firestore update specific element in array
body: <p>Im using Google Firestore with Angular and I'm trying to update a specific element inside an array.</p>
  
  <p>I've tried a lot of things but with no succsess at all.</p>
  
  <p>How can I reach to the specific company index inside the companies array?</p>
  
  <p>Thanks :)</p>
  
  <p><a href="https://i.stack.imgur.com/82N04.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/82N04.png" alt="enter image description here"></a></p>