Node.js
JavaScript runtime based on Chrome V8 engine, event driven, non blocking I/O. Suitable for I/O-intensive applications, API services, and real-time communication. Ecology: Express, Koa, NestJS.
Python
Concise grammar, high development efficiency, and rich ecosystem. Suitable for data science, AI/machine learning, web development, and script automation. Framework: Django, Flask, FastAPI.
Java
Static type, cross platform, stable performance, and mature ecosystem. Preferred for enterprise level applications, suitable for large high concurrency systems. Framework: Spring Boot, Spring Cloud.
How to choose
Development efficiency: Python>Node.js>Java; Performance: Java>Node.js>Python; Recruitment market: Java has the highest number of job positions.
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