Why will the console say this function is not defined while it is

Question

I get this error anytime I define a function inside the window.onload function. Can someone pls explain why it is so?
https://code.sololearn.com/Wye0GL5Z6zYR/?ref=app

Answer 1

I don't understand completely your question. Maybe you mean this.
https://code.sololearn.com/WeQ2pmbTLp5X/?ref=app