
- 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.
533 B
533 B
lines-and-columns
Maps lines and columns to character offsets and back. This is useful for parsers and other text processors that deal in character ranges but process text with meaningful lines and columns.
Install
$ npm install [--save] lines-and-columns
Usage
import { LinesAndColumns } from 'lines-and-columns'
const lines = new LinesAndColumns(
`table {
border: 0
}`
)
lines.locationForIndex(9)
// { line: 1, column: 1 }
lines.indexForLocation({ line: 1, column: 2 })
// 10
License
MIT