(function f1() {
    var a = 1, b = 1;
    var x = y = 2;
})();
(function f2() {
    let j = 1, k = 1;
    let r = s = 2;
})();

//what are the values for a, b, x, y, j, k, r, s in the global scope?
//which of these variables will exist on the window/global object?
console.log(global.s);