In Node.js, what is the primary purpose of the event loop, and how does it enable non-blocking I/O operations?

The primary purpose of the event loop in Node.js is to manage asynchronous operations in a single-threaded environment, enabling Node.js to handle multiple concurrent requests efficiently. It's the core mechanism that allows Node.js to perform non-blocking I/O (Input/Output) operations. The event loop continuously monitors the call stack and the task queue. The *call stackis where JavaScript code is executed, and the *task queueis where asynchronous operations (like reading from a file, making a network ....