Don't you love how bad programmers show off what they did that "works"? I mean, because "working" is everything you have to consider in a software.

What’s wrong with working code?
If it works, it works...

It works for now. What happens if a bug is found? if the program needs to be extended? Having scalability problems? Having performance issues? The programmer who developed it leaves and the next programmer can't understand your code? Cost to run/maintain is too high?

There's so much to consider based on your use cases and nature of the program. You don't just make it work. You have to write readable, maintainable code, make it work sufficiently well, write tests, and use proper tech for the given case. God forbid you use bubblesort and say "it works".