Introduction to Event-Driven Programming

Imagine a busy restaurant with a skilled staff efficiently handling multiple orders at the same time. As customers place orders, the kitchen gets notified, prepares meals, and updates the staff when an order is ready. This kind of coordination ensures smooth operation even during rush hours.

Event-driven programming works in a similar way. Instead of waiting for each task to finish one by one, programs listen for events and respond as they occur. This approach is at the core of Node.js and allows it to handle many tasks simultaneously, like managing user interactions, incoming requests, or file operations, without being overwhelmed.

Key components of event-driven programming

Event-driven programming relies on several key components that enable asynchronous and dynamic behavior in applications.

1. Event loop: A mechanism that monitors the program for events and delegates tasks for processing.

2. Event listeners: Functions that listen for specific events ...