Tip calculator using HTML, CSS and Javascript

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

Next time, I will pay more attention to the quality of my code and use tools like ESLint. I'm proud that I developed the code on my own while trying to use pure functions.

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

I encountered challenge about event listeners, but finally I decided to leave code like it is and not to add more functions.

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

I would like help with better coding solutions and writing as many pure functions as possible.