How to return a variable from xhr.onload event?

Question

JavaScript

Hey!
Why can't I get the value of a variable outside of a function?
First I set a variable, then in the body of the function I assign a value to this variable and make a closure. But for some reason the result is not returned. Maybe it has something to do with Ajax? For with cycles and other constructions, this method rolls.

What's the matter?

Answer 1

This is an asynchronous event. At the moment when you do console.log() the result of the request has not yet come.
And don't make the code a picture anymore.