uncaught referenceerror mude is not defined

Question

I Just copy and paste various exercises in a unique HTML page, but one function return error.
Why?
https://code.sololearn.com/W6zc56G2yju3/?ref=app

Answer 1

The mude function is wrapped in another function, which causes it not to be recognized.

I moved the function to the end of the script and there was no error to be seen

Answer 2

I tried before this, but I didn't know how... Now, is perfect. Thank you so much!

Answer 3

One more time, Thanks a lot!

Answer 4

https://code.sololearn.com/Wyex5cdJbK8I/?ref=app