545563e776
- 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.
21 lines
483 B
JavaScript
21 lines
483 B
JavaScript
var isIndex = require('./_isIndex');
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/**
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* The base implementation of `_.nth` which doesn't coerce arguments.
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*
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* @private
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* @param {Array} array The array to query.
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* @param {number} n The index of the element to return.
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* @returns {*} Returns the nth element of `array`.
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*/
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function baseNth(array, n) {
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var length = array.length;
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if (!length) {
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return;
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}
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n += n < 0 ? length : 0;
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return isIndex(n, length) ? array[n] : undefined;
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}
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module.exports = baseNth;
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