The Map object in JavaScript provides several key methods for adding, retrieving and manipulating key-value pairs. The set() method is used to add or update a key-value pair in a Map.

It’s always worth checking your robots.txt file to see if there are any JavaScript files blocked that could prevent the bots, in particular, from accessing the content of the page. Next Steps ...

The guide goes over much of what was covered in the video series and focuses on getting JavaScript content indexed by Google. As stated, it’s the literal basics.