πΊοΈ Product Roadmap β
Last Updated: November 4, 2025 Current Version: v5.6.0 Status: Active Development
π Executive Summary β
This roadmap outlines the strategic direction and planned improvements for @mcabreradev/filter from v5.0.2 onwards. The focus is on enhancing developer experience, performance, ecosystem integration, and community adoption.
Key Goals:
- π Improve performance and bundle efficiency
- π― Expand operator capabilities (MongoDB parity)
- π Enable extensibility through plugin system
- π Enhance documentation and onboarding
- π Build framework integrations and ecosystem
- π‘οΈ Strengthen security and quality automation
π― Vision & Strategy β
Short-term (Q1 2025) β
Focus on critical infrastructure and developer experience improvements that will increase adoption and reduce friction.
Mid-term (Q2-Q3 2025) β
Expand feature set with logical operators, plugin system, and framework integrations to compete with established libraries.
Long-term (Q4 2025+) β
Build a thriving ecosystem with community contributions, extensions, and enterprise-grade tooling.
π Release Timeline β
v5.6.0 - Geospatial & DateTime (Released: November 1, 2025) β β
Theme: Location & Time-Based Filtering
v5.5.1 - Stability & Polish (Released: October 30, 2025) β β
Theme: Bug Fixes & Refinements
v5.5.0 - Developer Experience (Released: October 28, 2025) β β
Theme: Debugging & Usability
v5.4.0 - Framework Integrations (Released: October 26, 2024) β β
Theme: Community & Extensions
v5.1.0 - Infrastructure & DX (Target: Q1 2026) β
Theme: Foundation & Automation
v5.2.0 - Advanced Features (Target: Q2 2026) β
Theme: Power & Flexibility
v6.0.0 - Major Evolution (Target: Q4 2026) β
Theme: Enterprise-Ready
β v5.6.0 - Geospatial & DateTime β
Status: β Completed Release Date: November 1, 2025 Focus: Location-based and time-based filtering
π΄ Critical Priority - Completed β
Geospatial Operators β β
Epic: Location-Based Filtering Effort: 3-4 days Impact: π₯ High Status: β Completed
Deliverables:
- β
$nearoperator for proximity search - β
$geoBoxoperator for bounding box queries - β
$geoPolygonoperator for polygon containment - β Distance calculation utilities
- β Coordinate validation
- β TypeScript support with GeoPoint types
- β Comprehensive tests (26 tests)
- β Documentation and examples
Success Metrics:
- β All geospatial operators implemented
- β 100% test coverage
- β Documentation complete
DateTime Operators β β
Epic: Time-Based Filtering Effort: 4-5 days Impact: π₯ High Status: β Completed
Deliverables:
- β
$recentoperator for past time ranges - β
$upcomingoperator for future time ranges - β
$dayOfWeekoperator for day filtering - β
$timeOfDayoperator for hour filtering - β
$ageoperator for age calculation - β
$isWeekdayand$isWeekendoperators - β
$isBeforeand$isAfteroperators - β TypeScript support with DateTime types
- β Comprehensive tests (90 tests)
- β Documentation and examples
Success Metrics:
- β All datetime operators implemented
- β 100% test coverage
- β Documentation complete
- β Total test count: 613+ tests
β v5.5.1 - Stability & Polish β
Status: β Completed Release Date: October 30, 2025 Focus: Bug fixes and stability improvements
π’ Completed β
Bug Fixes & Stability β β
Epic: Production Readiness Effort: 1 day Impact: π₯ High Status: β Completed
Deliverables:
- β Bug fixes and stability improvements
- β Build optimization issues resolved
- β Type definition exports corrected
- β Documentation updated with latest features
- β Improved error messages
- β Enhanced performance for array operations
Success Metrics:
- β All critical bugs resolved
- β Build process optimized
- β Type safety improved
β v5.5.0 - Developer Experience β
Status: β Completed Release Date: October 28, 2025 Focus: Debugging tools and developer experience
π΄ Critical Priority - Completed β
Array OR Syntax β β
Epic: Intuitive Filtering API Effort: 2-3 days Impact: π₯ High Status: β Completed
Deliverables:
- β
Array-based OR filtering without explicit
$inoperator - β Wildcard support within array values
- β Works with strings, numbers, booleans
- β 100% backward compatible
- β Comprehensive tests (20+ test cases)
- β Documentation and examples
Example Usage:
// Clean and intuitive (OR logic)
filter(products, { category: ['Electronics', 'Books'] });
// Equivalent to: { category: { $in: ['Electronics', 'Books'] } }
// Multiple properties with array OR
filter(users, {
city: ['Berlin', 'Paris'],
age: 30,
role: ['admin', 'moderator']
});Success Metrics:
- β Intuitive API implemented
- β Full test coverage
- β Documentation complete
Visual Debugging β β
Epic: Debug Mode with Tree Visualization Effort: 3-4 days Impact: οΏ½ High Status: β Completed
Deliverables:
- β Built-in debug mode with expression tree visualization
- β
debugoption to enable debug mode - β
verboseoption for detailed evaluation info - β
showTimingsoption to display execution timings - β
colorizeoption for ANSI color support - β
filterDebugfunction for programmatic access - β Performance metrics and condition tracking
- β Comprehensive tests
- β Documentation and examples
Example Usage:
// Enable debug mode
filter(users, { city: 'Berlin' }, { debug: true });
// Programmatic access
const result = filterDebug(users, { age: { $gte: 30 } });
console.log('Matched:', result.stats.matched);
console.log('Execution time:', result.stats.executionTime);Success Metrics:
- β Debug mode fully functional
- β Tree visualization working
- β Performance metrics accurate
- β Documentation complete
Interactive Playground β β
Epic: Try Before You Buy Effort: 3-4 days Impact: π₯ High Status: β Completed
Deliverables:
- β
Web-based playground
- Live code editor
- Data input (JSON)
- Expression builder
- Options configurator
- Real-time results
- Example library
- β Hosted online at filter-docs.vercel.app/playground
- β Shareable playground links
- β Embedded in documentation
Success Metrics:
- β Users can try library without installing
- β Examples demonstrate all features
- β Shareable playground links working
β v5.4.0 - Framework Integrations β
Status: β Completed Release Date: October 26, 2024 Focus: Community and framework integrations
π΄ Critical Priority - Completed β
Framework Integrations β β
Epic: React, Vue, Svelte Hooks Effort: 5-6 days Impact: π₯ High Status: β Completed
Deliverables:
- β React integration (useFilter, useFilteredState, useDebouncedFilter, usePaginatedFilter)
- β Vue integration (Composition API composables)
- β Svelte integration (Store-based filtering)
- β TypeScript support with full generics
- β 100% test coverage
- β Comprehensive documentation
- β SSR compatibility (Next.js, Nuxt, SvelteKit)
Success Metrics:
- β All framework integrations completed
- β 100% test coverage achieved
- β SSR compatibility verified
οΏ½π v5.1.0 - Infrastructure & DX β
Status: π΄ Not Started Target Release: Q1 2026 Focus: Critical infrastructure and developer experience
π΄ Critical Priority β
1. CI/CD Pipeline β
Epic: Automated Testing & Deployment Effort: 2-3 days Impact: π₯ Critical
Deliverables:
- [ ] GitHub Actions workflow for CI
- Multi-version Node.js testing (20.x, 22.x)
- Automated linting and type checking
- Test coverage reporting
- Build verification
- [ ] Automated NPM publishing workflow
- Tag-based releases
- Automated changelog generation
- GitHub release creation
- [ ] Code coverage integration (Codecov)
- [ ] Status badges for README
Files to Create:
.github/
workflows/
ci.yml
release.yml
security.ymlSuccess Metrics:
- β 100% of PRs run automated tests
- β Zero manual steps for releases
- β Coverage visible on all PRs
2. Performance Benchmarking Suite β
Epic: Performance Measurement & Optimization Effort: 3-4 days Impact: π₯ High
Deliverables:
- [ ] Vitest benchmark configuration
- [ ] Comprehensive benchmark suite
- String matching benchmarks
- Operator vs predicate comparisons
- Caching impact measurements
- Wildcard pattern performance
- Large dataset handling (100, 1K, 10K, 100K items)
- [ ] Benchmark CI integration
- [ ] Performance regression detection
- [ ] Benchmark results in documentation
Files to Create:
benchmarks/
filter.bench.ts
operators.bench.ts
cache.bench.ts
wildcards.bench.ts
README.mdSuccess Metrics:
- β Baseline performance documented
- β Automated regression detection
- β Performance claims backed by data
3. Bundle Size Analysis & Optimization β
Epic: Tree-Shaking & Bundle Efficiency Effort: 2 days Impact: π₯ High
Deliverables:
- [ ] Configure
size-limitfor bundle analysis - [ ] Add
sideEffects: falseto package.json - [ ] Implement modular exports for tree-shaking
- [ ] Bundle size badges in README
- [ ] Document bundle impact per feature
- [ ] Optimize imports and exports
Files to Update:
package.json (exports, sideEffects)
.size-limit.js (new)
README.md (badges)Success Metrics:
- β Full library < 10 KB minified+gzipped
- β Core-only < 3 KB
- β Tree-shaking verified
π‘ High Priority β
4. Enhanced Error Handling β
Epic: Better Error Messages & Debugging Effort: 2 days Impact: π₯ Medium-High
Deliverables:
- [ ] Custom error classes
InvalidExpressionErrorInvalidOptionsErrorInvalidArrayErrorMaxDepthExceededError
- [ ] Error context and metadata
- [ ] Error documentation
- [ ] Error recovery examples
Files to Create:
src/
errors/
filter-errors.ts
index.ts
docs/
ERROR_HANDLING.mdSuccess Metrics:
- β All errors have unique codes
- β Error messages include actionable context
- β Documented error handling patterns
5. TypeScript Type Tests β
Epic: Type Safety Verification Effort: 1-2 days Impact: π₯ Medium
Deliverables:
- [ ] Install and configure
tsd - [ ] Type tests for all public APIs
- [ ] Type tests for edge cases
- [ ] Type tests in CI pipeline
Files to Create:
src/
__type-tests__/
filter.test-d.ts
operators.test-d.ts
validation.test-d.tsSuccess Metrics:
- β 100% API coverage in type tests
- β Type regressions caught in CI
π’ Nice to Have β
6. Quick Wins (< 1 hour each) β
Epic: Low-Effort, High-Value Improvements Effort: 4-6 hours total Impact: π₯ Low-Medium
Deliverables:
- [ ] Add
.npmignoreto reduce package size - [ ] Create
CHANGELOG.mdwith standard format - [ ] Update
SECURITY.mdwith security policy - [ ] Add comprehensive badges to README
- Coverage badge
- Bundle size badge
- npm version badge
- Downloads badge
- License badge
- [ ] Add
engines.npmto package.json - [ ] Expand
keywordsin package.json - [ ] Create
.editorconfigfor consistency - [ ] Add
CODEOWNERSfile - [ ] Configure
dependabot.ymlfor auto-updates - [ ] Add
funding.ymlif applicable
Files to Create/Update:
.npmignore
CHANGELOG.md
.editorconfig
.github/
CODEOWNERS
dependabot.yml
FUNDING.ymlπ¨ v5.2.0 - Advanced Features β
Status: π‘ Planned Target Release: Q2 2026 Focus: Feature expansion and flexibility
π΄ Critical Priority β
7. Plugin System β
Epic: Extensibility & Custom Operators Effort: 5-6 days Impact: π₯ High
Deliverables:
- [ ] Plugin architecture design
- [ ] Plugin registration API
- [ ] Custom operator support
- [ ] Plugin lifecycle hooks
- [ ] Plugin documentation
- [ ] Example plugins
- Regex operators plugin
- Date utilities plugin
- Fuzzy matching plugin
Files to Create:
src/
plugins/
plugin-system.ts
plugin-manager.ts
types.ts
index.ts
examples/
plugins/
regex-plugin.ts
date-plugin.ts
fuzzy-plugin.ts
docs/
PLUGIN_DEVELOPMENT.mdExample Usage:
import { pluginManager } from '@mcabreradev/filter';
import { regexPlugin } from '@mcabreradev/filter-plugin-regex';
pluginManager.register(regexPlugin);
filter(users, {
email: { $regex: '^[a-z]+@example\\.com$' }
});Success Metrics:
- β Plugin API stable and documented
- β 3+ example plugins created
- β Community can create plugins
π‘ High Priority β
8. Advanced Performance Optimizations β
Epic: Speed & Efficiency Effort: 2-3 days Impact: π₯ Medium
Note: Lazy evaluation and memoization already implemented in v5.1.0 and v5.2.0
Deliverables:
- [ ] LRU cache for predicates (enhancement)
- [ ] Enhanced memoization strategy
- [ ] Lazy evaluation improvements
- [ ] Additional early exit optimizations
- [ ] Memory profiling tools
- [ ] Performance documentation updates
Files to Create/Update:
src/
utils/
lru-cache.ts (new)
core/
filter-lazy.ts (enhance existing)
docs/
PERFORMANCE.md (update)Success Metrics:
- β 20%+ performance improvement on large datasets
- β Reduced memory footprint
- β Enhanced lazy evaluation
π’ Nice to Have β
9. Property-Based Testing β
Epic: Comprehensive Test Coverage Effort: 2-3 days Impact: π₯ Low-Medium
Deliverables:
- [ ] Configure
fast-check - [ ] Property-based tests for core functions
- [ ] Fuzzing tests for edge cases
- [ ] Integration with CI
Files to Create:
src/
core/
filter.property.test.ts
operators/
operators.property.test.tsSuccess Metrics:
- β 1000+ random test cases pass
- β Edge cases discovered and fixed
10. Mutation Testing β
Epic: Test Quality Verification Effort: 2 days Impact: π₯ Low
Deliverables:
- [ ] Configure Stryker
- [ ] Run mutation tests
- [ ] Improve test quality based on results
- [ ] Document mutation score
Files to Create:
stryker.config.js
docs/
TESTING.md (update)Success Metrics:
- β Mutation score > 80%
- β Test quality validated
π v5.7.0 - Extended Ecosystem β
Status: π΅ Future Target Release: Q3 2026 Focus: Additional integrations and tooling
π΄ Critical Priority β
11. TypeDoc API Documentation β
12. Mutation Testing β
Epic: Test Quality Verification Effort: 2 days Impact: π₯ Low
Deliverables:
- [ ] Configure Stryker
- [ ] Run mutation tests
- [ ] Improve test quality based on results
- [ ] Document mutation score
Files to Create:
stryker.config.js
docs/
TESTING.md (update)Success Metrics:
- β Mutation score > 80%
- β Test quality validated
π v5.3.0 - Ecosystem & Integrations β
Status: β Completed Release Date: October 25, 2025 Focus: Community and framework integrations
π΄ Critical Priority β
13. Framework Integrations β β
Epic: React, Vue, Svelte Hooks Effort: 5-6 days Impact: π₯ High Status: β Completed
Deliverables:
- β
React integration
useFilterhookuseFilteredStatehookuseDebouncedFilterhookusePaginatedFilterhookFilterProvidercomponent- TypeScript support
- Comprehensive tests
- Examples and docs
- β
Vue integration
- Composition API support
useFiltercomposableuseFilteredStatecomposableuseDebouncedFiltercomposableusePaginatedFiltercomposable- TypeScript support
- Comprehensive tests
- Examples and docs
- β
Svelte integration
- Store-based filtering
useFilterstoreuseFilteredStatestoreuseDebouncedFilterstoreusePaginatedFilterstore- TypeScript support
- Comprehensive tests
- Examples and docs
- β Framework comparison guide
- β Comprehensive documentation
Files Created:
src/
integrations/
shared/
debounce.ts
debounce.test.ts
pagination.ts
pagination.test.ts
index.ts
react/
use-filter.ts
use-filter.test.tsx
use-filtered-state.ts
use-filtered-state.test.tsx
use-debounced-filter.ts
use-debounced-filter.test.tsx
use-paginated-filter.ts
use-paginated-filter.test.tsx
filter-provider.tsx
filter-provider.test.tsx
react.types.ts
react.constants.ts
react.utils.ts
index.ts
vue/
use-filter.ts
use-filter.test.ts
use-filtered-state.ts
use-filtered-state.test.ts
use-debounced-filter.ts
use-debounced-filter.test.ts
use-paginated-filter.ts
use-paginated-filter.test.ts
vue.types.ts
vue.constants.ts
vue.utils.ts
index.ts
svelte/
use-filter.ts
use-filter.test.ts
use-filtered-state.ts
use-filtered-state.test.ts
use-debounced-filter.ts
use-debounced-filter.test.ts
use-paginated-filter.ts
use-paginated-filter.test.ts
svelte.types.ts
svelte.constants.ts
svelte.utils.ts
index.ts
docs/
FRAMEWORK_INTEGRATIONS.mdExample Usage:
// React
import { useFilter, useDebouncedFilter, usePaginatedFilter } from '@mcabreradev/filter';
function UserList() {
const { filtered, isFiltering } = useFilter(users, { active: true });
return <div>{filtered.map(user => <User key={user.id} {...user} />)}</div>;
}
// Vue
import { useFilter, usePaginatedFilter } from '@mcabreradev/filter';
const searchTerm = ref('');
const { filtered, isFiltering } = useFilter(users, searchTerm);
// Svelte
import { writable } from 'svelte/store';
import { useFilter } from '@mcabreradev/filter';
const searchTerm = writable('');
const { filtered, isFiltering } = useFilter(users, searchTerm);Success Metrics:
- β React hooks implemented and tested (100% coverage)
- β Vue composables implemented and tested (100% coverage)
- β Svelte stores implemented and tested (100% coverage)
- β Comprehensive documentation created
- β TypeScript support with full generics
- β SSR compatibility verified
14. TypeDoc API Documentation β
Epic: Auto-Generated API Docs Effort: 2-3 days Impact: π₯ Medium-High
Deliverables:
- [ ] Configure TypeDoc
- [ ] Generate API documentation
- [ ] Host docs on GitHub Pages
- [ ] Link from README
- [ ] Auto-update on releases
Files to Create:
typedoc.json
.github/
workflows/
docs.yml
docs/
api/ (generated)Success Metrics:
- β 100% API documented
- β Docs auto-update on release
- β Searchable documentation
π‘ High Priority β
12. Developer Tools β
Epic: VSCode Extension & ESLint Plugin Effort: 4-5 days Impact: π₯ Medium
Deliverables:
- [ ] VSCode snippets
- Filter with operators
- Filter with options
- Common patterns
- [ ] ESLint plugin
prefer-operatorsruleno-unsafe-expressionrule- Auto-fix support
- [ ] Prettier plugin (optional)
Files to Create:
packages/
vscode-filter/
snippets/
filter.json
package.json
eslint-plugin-filter/
rules/
prefer-operators.ts
no-unsafe-expression.ts
index.ts
package.jsonSuccess Metrics:
- β VSCode extension published
- β ESLint plugin published
- β 100+ downloads in first month
13. Migration Tools β
Epic: Automated Code Migration Effort: 3-4 days Impact: π₯ Medium
Deliverables:
- [ ] Codemod for v3 β v5 migration
- [ ] CLI migration tool
- [ ] Migration guide improvements
- [ ] Before/after examples
Files to Create:
scripts/
migrate-v3-to-v5.ts
cli.ts
packages/
filter-migrate/
src/
transforms/
cli.ts
package.jsonSuccess Metrics:
- β 80%+ of migrations automated
- β Clear migration path documented
π’ Nice to Have β
14. Community Templates β
Epic: Issue Templates & Contributing Guide Effort: 1-2 days Impact: π₯ Low-Medium
Deliverables:
- [ ] Bug report template
- [ ] Feature request template
- [ ] Pull request template
- [ ] Discussion templates
- [ ] Enhanced CONTRIBUTING.md
- [ ] Code of Conduct
Files to Create:
.github/
ISSUE_TEMPLATE/
bug_report.yml
feature_request.yml
PULL_REQUEST_TEMPLATE.md
DISCUSSION_TEMPLATE/
CODE_OF_CONDUCT.mdSuccess Metrics:
- β Consistent issue format
- β Easier for contributors
15. Telemetry & Analytics (Optional) β
Epic: Usage Insights Effort: 2-3 days Impact: π₯ Low
Deliverables:
- [ ] Opt-in telemetry system
- [ ] Usage analytics
- [ ] Performance metrics collection
- [ ] Privacy-first implementation
Files to Create:
src/
telemetry/
telemetry.ts
collector.ts
types.tsSuccess Metrics:
- β Privacy-compliant
- β Opt-in only
- β Actionable insights
π v6.0.0 - Major Evolution β
Status: π΅ Future Target Release: Q4 2026 Focus: Enterprise features and breaking improvements
Potential Features (TBD) β
16. Query Builder API β
Epic: Fluent Interface Effort: 5-7 days Impact: π₯ High
Concept:
const query = new FilterQuery<User>()
.where('age').gte(18)
.and('city').in(['Berlin', 'Paris'])
.or((q) => q
.where('premium').equals(true)
.where('rating').gte(4.5)
)
.build();
const results = filter(users, query);17. SQL-Like Query Language β
Epic: String-Based Queries Effort: 7-10 days Impact: π₯ Medium-High
Concept:
filter(users, 'age >= 18 AND city IN ("Berlin", "Paris")');
filter(products, 'price BETWEEN 100 AND 500 AND inStock = true');18. GraphQL Integration β
Epic: GraphQL Filter Resolver Effort: 5-6 days Impact: π₯ Medium
Concept:
import { createFilterResolver } from '@mcabreradev/filter-graphql';
const resolvers = {
Query: {
users: createFilterResolver(User, {
allowedFields: ['name', 'age', 'city'],
maxDepth: 3,
}),
},
};19. Database Adapters β
Epic: Query Translation Effort: 10-15 days Impact: π₯ High
Concept:
import { createMongoAdapter } from '@mcabreradev/filter-mongo';
const adapter = createMongoAdapter();
const mongoQuery = adapter.translate({
age: { $gte: 18 },
city: { $in: ['Berlin', 'Paris'] }
});
// mongoQuery = { age: { $gte: 18 }, city: { $in: ['Berlin', 'Paris'] } }π Success Metrics & KPIs β
Adoption Metrics β
- NPM Downloads: 10K/month by Q4 2026
- GitHub Stars: 500+ by Q4 2026
- Contributors: 10+ active contributors
- Framework Integrations: β React, Vue, Svelte (Completed)
Quality Metrics β
- Test Coverage: β Maintain 100%
- Type Coverage: β 100%
- Bundle Size: < 10 KB (full library)
- Performance: β 530x-1520x improvement with caching
Community Metrics β
- GitHub Issues: < 10 open issues
- Response Time: < 48 hours
- Documentation: 95%+ satisfaction
- Plugin Ecosystem: 5+ community plugins (target)
π€ Contributing to the Roadmap β
We welcome community input on this roadmap!
How to Contribute β
- Vote on Features: Use π reactions on GitHub issues
- Propose Features: Open a discussion in GitHub Discussions
- Sponsor Development: Accelerate specific features
- Submit PRs: Implement features from this roadmap
Priority Criteria β
Features are prioritized based on:
- Impact: How many users benefit?
- Effort: How long will it take?
- Strategic Fit: Does it align with vision?
- Community Demand: How many requests?
π Changelog & Updates β
Roadmap Updates β
- 2025-10-30: Updated for v5.5.1 release
- 2025-10-28: Added v5.5.0 features (Array OR Syntax, Visual Debugging, Interactive Playground)
- 2025-10-25: Initial roadmap created (v5.0.2)
- TBD: Next review and update
Completed Items β
- β v5.5.1: Bug fixes and stability improvements
- β v5.5.0: Array OR Syntax
- β v5.5.0: Visual Debugging (debug mode, tree visualization, performance metrics)
- β v5.5.0: Interactive Playground
- β v5.4.0: Framework Integrations (React, Vue, Svelte)
- β v5.4.0: React Hooks with full feature set
- β v5.4.0: Vue Composables with Composition API
- β v5.4.0: Svelte Stores with reactivity
- β v5.4.0: Comprehensive framework documentation
- β v5.2.0: Enhanced memoization (530x-1520x faster)
- β v5.2.0: Logical operators ($and, $or, $not)
- β v5.2.0: Regex operators ($regex, $match)
- β v5.1.0: Lazy evaluation with generators
- β v5.0.0: MongoDB-style operators
- β v5.0.0: Configuration API
- β v5.0.0: Runtime validation
- β v5.0.0: Modular architecture
π Contact & Feedback β
- GitHub Issues: Report bugs or request features
- GitHub Discussions: Community discussions
- Email: [mcabrera.dev@gmail.com]
- Twitter: [@mcabreradev]
π License β
This roadmap is subject to change based on community feedback, technical constraints, and strategic priorities.
Last Updated: October 30, 2025 Next Review: Q1 2026
Made with β€οΈ for the JavaScript/TypeScript community