Why innerHTML of null????

Question

https://code.sololearn.com/WrHJokpHjd1A/?ref=app

Answer 1

Use this:
window.onload = function() {
var a = document.getElementById("player")
}

function func() {
// You can use the 'a' variable here
}

Answer 2

Thanks

Answer 3

It' s don't work

Answer 4

Назар Степанюк show your code
Using the window.onload syntax

Answer 5

Sorry but I'm stupid)When I use window.onload syntax it's output error

Answer 6

Назар Степанюк show your code pls

Answer 7

https://code.sololearn.com/W293Fg2oCWMU/?ref=app

Answer 8

It's work?