How do projects like this web scrape without Node.js?

Question

Hello, the only way to webscrape from a website which you are not currently on is through Puppeteer and Node,js.
I have seen many Coronavirus tracking projects like this one:
https://code.sololearn.com/W4pNnBG0JV1S/#html
that somehow manage to scrape information from another website using only conventional JavaScript/jQuery methods. Can someone PLEASE explain to me how this works, or even just the name of it so I can look it up myself? Thank you in advance.

Answer 1

I can see in the JS code they use AJAX to asynchronously get data from a remote source.

AJAX is the most basic building block of modern Web. It allows web pages to obtain data without having to refresh (that is, reissue a HTTP request).

In jQuery, a general AJAX call is written as $.ajax.

Reference to get started: https://www.w3schools.com/xml/ajax_intro.asp

Answer 2

https://www.youtube.com/playlist?list=PLkqwj9vc20pX36wThr2A6DZx4MVcJvnhe