Go vs Node.js khi nào nên chọn Go?

Chọn Go khi: CPU-intensive tasks, high concurrency (100K+ connections), microservices, CLI tools, system programming, cần type safety mạnh.

• Chọn Node.js khi: full-stack JS, rapid prototyping, npm ecosystem, real-time (Socket.io), team quen JS.
• Go nhanh hơn ~10-50x cho compute, Node.js ecosystem lớn hơn.