Why this code doesn't work?

Question

Why this code doesn't work? :(

(Thank you in advance)

https://code.sololearn.com/WCuy1IenBvYO/?ref=app

Answer 1

Run your JS code after the whole page is loaded, using the window.onload event.

window.onload = function() {
var dig = document.getElementById("dig");
dig.innerHTML = "ты не кросс";
}

Answer 2

Я все равно не понимаю

Answer 3

this code selects an item in does not take a value here is the problem