How to parse access_token from Facebook debugger page?

Question

JavaScript

First, the user logs in to the Facebook application, after which the script opens the link https://developers.facebook.com/tools/debug/access...
in a new window and you can see something like this:

How can I parse the contents of the underlined field?

Answer 1

You don't need to parse anything. Just use the out-of-the-box Javascript SDK to work with Facebook.
https://developers.facebook.com/docs/facebook-login/web

Answer 2

The facebook debugger is for the convenience of developing and checking what a particular request will return. All this needs to be received via api.
https://developers.facebook.com/docs/javascript