How to parse a site in js?

Question

Parsing

Good evening!
Tell me, how is a site parsed correctly, which has almost all the functions in js? That is, a news site, the news does not have separate urls. You need to click on the news, and js will work out the opening of the modal, then the necessary news will be loaded from the server by Ajax and inserted into this modal. But how to write a parser so that it can make this discovery of the news and receive the incoming data?

I read that phantom js can work with js, but I didn’t understand how to use it as a parser.

Maybe there is something easier?

Answer 1

Selenium
Nightmare