My onclick function is not being called. Need help

Answer 1

Where is the Code ?

Answer 2

Nothing can be said without seeing your code

Answer 3

window.onload

https://www.sololearn.com/post/90825/?ref=app

https://code.sololearn.com/WKKkpq0efxai/?ref=app

3 ways of adding event listeners

https://code.sololearn.com/W0ehmlP2Y3I3/?ref=app

https://code.sololearn.com/Wyr76080kKxS/?ref=app