Firebase Functions offer a serverless solution for real-time apps, eliminating server maintenance and scaling issues.
Key benefits include event-driven triggers, millisecond latency, pay-per-use pricing, and integration with Firebase's real-time database.
Developers can create real-time functions with quick setup, deploy triggers for various use cases like live user presence and leaderboards, and even implement live comment moderation.
Pros of Firebase Functions include easy scaling, real-time event triggers, and cost-effectiveness, while cons include occasional cold starts and vendor lock-in.