Why is Node.js popular for backend development?
Node.js is popular because it allows developers to use JavaScript across the frontend and backend, has a large npm ecosystem, provides efficient non-blocking I/O, and works well for APIs, real-time applications, microservices, and other I/O-heavy systems. Its asynchronous programming model can efficiently handle many concurrent requests without creating one operating-system thread per request.
Key Takeaways
- JavaScript can be used across the stack.
- npm provides a large package ecosystem.
- Non-blocking I/O supports high concurrency.
- Node.js is particularly strong for I/O-heavy workloads.
Knowledge Check
Which characteristic makes Node.js particularly useful for I/O-heavy backend applications?