Live Chat System Demo

Real-time communication for DB General Construction

Key Features

  • Instant Messaging: Send and receive messages in real-time
  • Delivery Confirmation: Visual confirmation when messages are sent
  • Timestamps: Every message includes a timestamp
  • Chat History: Messages persist across sessions
  • Automated Responses: Intelligent auto-replies for common questions
  • Availability Status: Shows online/offline status

Security & UX

  • XSS Protection: All messages are sanitized
  • Input Validation: Empty messages are rejected
  • Email Transcript: Send chat history via email
  • Responsive Design: Works on all devices
  • Smooth Animations: Professional UI transitions
  • Session Management: Unique session IDs for tracking

Technical Implementation

Frontend
  • Vanilla JavaScript (ES6+)
  • CSS3 Animations
  • LocalStorage API
  • Responsive Design
Features
  • Message persistence
  • Typing indicators
  • Automated responses
  • Offline messaging
Testing
  • Property-based tests
  • 100+ test iterations
  • XSS vulnerability tests
  • Persistence validation

Try It Out!

Look for the yellow chat button in the bottom-right corner of your screen.

Click it to start chatting and explore all the features!

Sample Messages to Try:

This demo showcases the Live Chat System implementation for DB General Construction PLC

Property Tests: ✅ Message Delivery Confirmation | ✅ Timestamp Display