Pros
Full-stack opportunities: Same language (JavaScript/TypeScript) for backend + frontend → easier to work with React/Next/Angular teams. Great ecosystem: Huge npm library availability → faster development and problem solving. High-performance apps: Event-driven, non-blocking I/O allows handling many requests efficiently → excellent for microservices & streaming apps. Realtime app development: Ideal for chat apps, online gaming, payment systems, live dashboards. Cloud-friendly: Lightweight and scalable → easy deployment on serverless, Docker, Kubernetes, AWS, GCP, Azure.
Cons
High responsibility on performance: IT companies expect extreme scalability; you must write optimized and secure code consistently. Rapid ecosystem changes: Frequent updates in packages/frameworks → need continuous learning, upgrades, dependency maintenance. Debugging can be tricky: Realtime apps and distributed services sometimes make issue tracking harder.