Can I insert Google Analytics javascript in a trigger?

Can confirm that this works!

1. Set up your Google Analytics property
2. In Google Analytics go to Admin (gear icon) > Data collection and modification > Data streams
3. Add a stream if needed
4. Click on the stream and click "View tag instructions."
5. Choose "Install manually."
6. Copy the code it gives you and paste into a text editor

<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-YOURGCODE"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'G-YOURGCODE');
</script>

7. Replace lines 2 and 3 with the actual javascript contents of the page at https://www.googletagmanager.com/gtag/js?id=G-YOURGCODE

8. Copy all of that and paste into a Javascript Trigger.