react-code-smells
Principal Engineering React Best Practices
Principal-engineer-level refactoring guide for React applications. Contains 42 rules across 8 categories, prioritized by impact from critical (state architecture, composition) to incremental (testability). Each rule includes code smell indicators, before/after examples, and safe transformation steps.
When to Apply
Reference these guidelines when:
- Refactoring existing React codebases
- Reviewing PRs for architectural issues
- Identifying technical debt
- Planning large-scale refactoring efforts
- Deciding whether to extract, inline, or restructure components
- Improving testability of React code
Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | State Architecture | CRITICAL | state- |
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