I don't get: output is 3 1 but why?

Question

What is the output of this code?
var x=3;
var one = {
X: 2,
two: {
x: 1,
three: function() {
return this.x;
}}}
var go = one.two.three;
(Console.log(go(), one.two.three());

Answer 1

var go = one.two.three the this context is lost when referencing to the method. Then when go is called this refers to the global context instead of the original object.
EDIT: To keep it simple. In Javascript this refers to the object that calls the method.
go() <- There's not dot here.

one.two.three() you get it.

Try:
var go = one.two.three.bind(one.two)

Answer 2

Kevin ★ thanks...🤗