Sales and Profit

lite-n-fast pocket solution for simple Cost-and-Profit count.
Private project, opened due GH politic reasons.

Unusual glossary:

Xpense — any expense,
Eitem (E-item) — unique expense item.

Structure:

components/
WelcomeHome.tsx — Home page

pages/
plus.tsx — Sales register with add new product option. Select (or add new) Customer, select/add Product, set product Summ, enjoy.
minus.tsx — Xpenses register with add new E-item option. Select (add new) E-item, set group Cost, breathe out ))
statistics.tsx — usefull tool for data slice.
settings.tsx — admin options to manage database.

For curiose reviewers

Yes, I know, using key=Math.random() and some any tricks is not perfect idea, but in this app it suits me )) The same, about code comments and their absence ))