Writing React/TypeScript Code

This is the authoritative standard for all React/TypeScript code. Every file you write or modify must conform to these rules. They are not suggestions.

1. TypeScript Strict Configuration

ESLint Flat Config

Use typescript-eslint with strict + type-checked presets, plus additional rules. Some rules use warnInDevModeErrorInProd() — warn during development, error in CI/production.

Key enforced rules (beyond the strict preset):