Offline Web Applications

  1. Data Synchronization Patterns
    1. Network State Detection
      1. Online and Offline Events
        1. Event Timing
          1. Event Reliability
            1. Cross-Browser Compatibility
            2. Custom Connectivity Detection
              1. Heartbeat Mechanisms
                1. Request-Based Detection
                  1. Hybrid Approaches
                2. Offline Operation Management
                  1. Operation Queuing
                    1. Queue Data Structures
                      1. Operation Serialization
                        1. Queue Persistence
                        2. Operation Ordering
                          1. Dependency Management
                            1. Conflict Prevention
                              1. Priority Systems
                              2. Operation Retry Logic
                                1. Exponential Backoff
                                  1. Retry Limits
                                    1. Failure Handling
                                  2. Background Synchronization
                                    1. Background Sync API
                                      1. One-Time Sync Registration
                                        1. Sync Event Handling
                                          1. Sync Failure Management
                                          2. Periodic Background Sync
                                            1. Periodic Sync Registration
                                              1. Sync Intervals
                                                1. Battery and Network Considerations
                                                2. Custom Sync Solutions
                                                  1. Polling Mechanisms
                                                    1. WebSocket Reconnection
                                                      1. Server-Sent Events
                                                    2. Conflict Resolution
                                                      1. Conflict Detection
                                                        1. Version-Based Detection
                                                          1. Timestamp-Based Detection
                                                            1. Hash-Based Detection
                                                            2. Resolution Strategies
                                                              1. Last Writer Wins
                                                                1. First Writer Wins
                                                                  1. Merge Strategies
                                                                    1. User-Mediated Resolution
                                                                    2. Conflict Prevention
                                                                      1. Optimistic Locking
                                                                        1. Pessimistic Locking
                                                                          1. Operational Transformation

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                                                                      5. Local Data Storage Solutions

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                                                                      7. User Experience Design for Offline Applications