Refactoring a 1000 line God awful js function. Why do people do this?

Just 2 days spend on debuging a function !

Definition:
int func (int x, int y) {
...
}

Call :
int c = func (y, x);

I checked 1000 line for debuging this :-\

Plz remember that check your function args while debuging

what the fuck what the fuck what the fuck what the fuck what the fuck what the fuck

Please fucking tell me there's a better cleaner way to write this render() function?

The use of so many "in-line" code evaluations, arrow functions, (), {}, ...

Just spent like probably 30 minutes just trying to figure out what closes what...

And the author is inconsistent?

Sometimes he uses map( location => { return ... })

other times he uses setState((prevState) => ({ key: this.state.keyValue}))

And there's no note as to why... are they interchangeable, used in specific cases, does it matter????!!!!!!

Or is he just trying to demonstrate 1000 different ways you can say the same thing in JS?

!@#!#@!$#%#$!@#!@#!#$$%

Hi so I'm learning python in my spare time and I'm in a national competition. I've been told that programming is something my college has always lacked in and in the competition they fortunately use python throughout the problems. I have some example problems used in the last year competition (it was publicly released) and I'm going through them to get an idea of the problems we/I will face. Now I'm still learning python but I understand some of the code at hand. However I still need a little bit of help to understand some of it which will also help me get to a resolution.
Some of the questions I have are:
1. What exactly is the ordinal? I've done some research and I have a small idea but I couldn't find anything to really fill me in and explain how to use it, well in python at least. I saw an example for Pascal but that didn't do much.
2. What is the sys.argv? "The list if command line arguments passed to a python script". I'm not quite understanding that.
3. I know for is used for looping and I know an example say "for a in range(10):" but I'm not understanding the for c in password:
4. Where does the 1000 come from in the builder += 1000.
5. What does the 83 represent after ord(password[1])
6. I know the if statement is saying if this then do this so if __name__ == "__main__":
main()
It's saying call in the function main but where does the name and main come in that part?
Here is the image:

Thank you for your responses in advanced!
One person doesn't have to answer all. Time is precious I understand.