
- Complete NestJS TypeScript implementation with WebSocket support - Direct messaging (DM) and group chat functionality - End-to-end encryption with AES encryption and key pairs - Media file support (images, videos, audio, documents) up to 100MB - Push notifications with Firebase Cloud Messaging integration - Mention alerts and real-time typing indicators - User authentication with JWT and Passport - SQLite database with TypeORM entities and relationships - Comprehensive API documentation with Swagger/OpenAPI - File upload handling with secure access control - Online/offline status tracking and presence management - Message editing, deletion, and reply functionality - Notification management with automatic cleanup - Health check endpoint for monitoring - CORS configuration for cross-origin requests - Environment-based configuration management - Structured for Flutter SDK integration Features implemented: ✅ Real-time messaging with Socket.IO ✅ User registration and authentication ✅ Direct messages and group chats ✅ Media file uploads and management ✅ End-to-end encryption ✅ Push notifications ✅ Mention alerts ✅ Typing indicators ✅ Message read receipts ✅ Online status tracking ✅ File access control ✅ Comprehensive API documentation Ready for Flutter SDK development and production deployment.
51 lines
976 B
Markdown
51 lines
976 B
Markdown
# leven [](https://travis-ci.org/sindresorhus/leven)
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> Measure the difference between two strings<br>
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> One of the fastest JS implementations of the [Levenshtein distance](https://en.wikipedia.org/wiki/Levenshtein_distance) algorithm
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## Install
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```
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$ npm install leven
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```
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## Usage
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```js
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const leven = require('leven');
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leven('cat', 'cow');
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//=> 2
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```
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## Benchmark
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```
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$ npm run bench
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```
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```
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165,926 op/s » leven
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164,398 op/s » talisman
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1,044 op/s » levenshtein-edit-distance
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628 op/s » fast-levenshtein
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497 op/s » levenshtein-component
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195 op/s » ld
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190 op/s » levenshtein
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168 op/s » levdist
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10 op/s » natural
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```
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## Related
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- [leven-cli](https://github.com/sindresorhus/leven-cli) - CLI for this module
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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