why its not working? it says cannot set elements (innerHTML) of null

Question

https://code.sololearn.com/W8Ijn1cGSw6T/?ref=app

Answer 1

One way could be by using document.write() or else by creating a div with an id and then in the js accessing it and writing within it by innerHTML.

Answer 2

https://code.sololearn.com/WHyBlow7mHOR/?ref=app

Answer 3

solved the problem.. with (window.onload) hooker....check out the code now