Mortgage repayment calculator

What are you most proud of, and what would you do differently next time?

I'm most proud of the input customizations that I implemented. That was probably one of the most challenging parts of the challenge for me.

Next time I will have the experience of what I did this time and be better equipped to solve something similar.

What challenges did you encounter, and how did you overcome them?

Early on I was faced with the problem of how to format the monthly payment or total repayment so that it would have commas where they are commonly put in monetary amounts. I knew there were functions to do this like .toLocaleString() or a .replace() regex expression could be used, but I guess I wanted a bit of a challenge. So I broke apart the problem into its most fundamental parts, tried lots of things that didn't work and eventually led me to learn how to format any monetary amount.

What specific areas of your project would you like help with?

Any feedback is welcome!