Javascript button not working

Question

The button works fine when it's just iterating the count, but it fails when I add the "jump" animation.
https://code.sololearn.com/WCZHXpnXX40P/?ref=app

Answer 1

You override window.onload
Try this:

https://code.sololearn.com/W8iBw9V2Eq0c/?ref=app