Re: Why is Node.js Single-threaded?

[Saigon Technology]

Node.js is single-threaded due to its event-driven architecture, which revolves around an event loop.

This loop handles asynchronous operations efficiently by executing non-blocking I/O operations asynchronously, allowing Node.js to handle multiple requests simultaneously without getting blocked.

While traditional multi-threaded models create a new thread for each request, leading to increased memory overhead and potential concurrency issues, Node.js uses a single thread to handle all requests, optimizing resource utilization and scalability.

However, Node.js can still leverage multi-threading through features like Worker Threads, enabling developers to utilize multi-core systems when necessary while maintaining the benefits of its single-threaded architecture.