Created comprehensive test page at src/app/test-localstorage/page.tsx to verify useLocalStorage hook functionality in the browser.
Test Coverage:
- String values (basic get/set)
- Complex objects (nested properties)
- Arrays (add/remove items)
- Numbers (increment/decrement)
- Remove functionality
- State persistence across page refreshes
- Real-time localStorage updates visible in DevTools
Verification Guide:
A detailed manual verification guide has been created at .auto-claude/specs/004-add-uselocalstorage-custom-hook/MANUAL_VERIFICATION.md with step-by-step instructions for browser testing.
Manual Verification Checklist:
- [ ] No hydration errors in console
- [ ] localStorage updates visible in DevTools
- [ ] State persists across page refresh
- [ ] No TypeScript errors (verified with npx tsc --noEmit)
TypeScript compilation verified with no errors.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>