Request data to global variable

Question

How to put data in global variable?

const request = require("request");

let req = `empty`;

(async () => {
    req = await request("http://www.stackoverflow.com", function(error, response, data) {
        //console.log(data);
        return data;
    });
})();

console.log(req);

Answer 1

global.globalString = "This can be accessed anywhere!";  
console.log(globalString);