Why is there an error when you push the button on the bottom right? ⬇️

Question

https://code.sololearn.com/Wh9tG53eUjuJ/?ref=app

Answer 1

Lego in Motion
document.getElementsByClassName("bullet")[0].style.left="100vw";
elementsBy not elementBy and it returns list of nodes

Answer 2

Thanks! Now there's no error but it's not going to the end of the screen.

Answer 3

Oh never mind!