JSFiddle - React, Tailwind, and code Playground

JavaScript

var data;
    $.ajax({
        type: "GET",
        url: "https://2ch.com/какой-то_url_запрос",
        crossDomain: true,
        dataType: 'jsonp',
        success: function(msg){
            data=msg.some_field
            alert(data);
        }
    });
    alert(data);