Why can't I parse this value via Jsoup?

Question

Java

I want to parse the value of those infected with a virus.
I tried to access div.today__item__value, I also tried starting from article#free-research.free-researchgetting to the desired number of infections, but, unfortunately, nothing could be output to the console. Could you tell me how to parse such values?
Now the code looks like this:

package examples;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;

import java.io.IOException;

public class YandexCovid {
    public static String infoParse(){
        StringBuilder covidInfo = new StringBuilder();
        try {
            Document document = Jsoup.connect("https://yandex.ru/covid19/stat").get();
            Elements elements = document.getElementsByClass("today__item__value");

            covidInfo.append(elements.text());
        }catch (IOException e){
            e.printStackTrace();
        }
        return covidInfo.toString();
    }

    public static void main(String[] args){
        System.out.println(YandexCovid.infoParse());
    }
}

Answer 1

Good afternoon!
1) What you see in the browser console (when inspecting elements) and what is displayed in the source code ctrl + u differ.
These elements are not in the source code, as they are supposedly added to the DOM dynamically (using js). Looks like the react framework.
Accordingly, parsing with the help of jsoup will not work.
Look towards
selenium + jbrowserdriver - https://github.com/MachinePublishers/jBrowserDriver
selenium + chrome || firefox

Answer 2

It is highly likely that the data comes in one of the requests. Study the requests that the page receives when it loads.