Internal vs. External - a virtual keyboard problem

Question

The "virtual-keyboard-problem" here is as simple as it sounds: internal code works - external code doesn't.

Very likely it has something to do with Sololearn's I/O handling, but:

Can someone explain it further?

https://sololearn.com/compiler-playground/WyG7clMnMdY0/?ref=app

->

https://sololearn.com/compiler-playground/W93Kbu9u464V/?ref=app

Edit:
Now this should be a better example for that problem:

https://sololearn.com/compiler-playground/W37farYOnZ9S/?ref=app

Answer 1

Lisa Yes it does; but all in all (is this a possible english statement? - doesn't really matter - you know what I mean) it's simply about:

It just won't compile...

Answer 2

Now I simply used:
document.addEventListener('DOMContentLoaded', function () {

});

and some different methods to make it work, but the basic problem isn't solved yet - because I tried it in former sessions and got no result...

Answer 3

you try document's load? does it change when using window's load ?