📫 Business - jawadrana2015@gmail.com The events module in Node.js provides an event-driven architecture that allows objects to emit named events that can be listened to by functions (listeners). This module is crucial for implementing event-driven programming in Node.js, where actions or occurrences are treated as events that trigger reactions or responses. Here's an overview of the events module and how to use it in Node.js: EventEmitter Class: The events module includes the EventEmitter class, which serves as the foundation for creating and managing events and event listeners. Creating Custom Events: You can create custom events by extending the EventEmitter class and using the emit() method to emit events. Listening to Events: You can listen to events using the on() method to register event listeners. Passing Arguments with Events: You can pass arguments along with events to provide additional context or data to event listeners. let events = require("events") let eventEmitter = new events.EventEmitter() function ringBell(){ console.log("ring ring ring") eventEmitter.emit("welcome","Welcome to our shop") } eventEmitter.on("doorPass",ringBell) eventEmitter.on("welcome",function(msg){ console.log(msg) }) eventEmitter.emit("doorPass") The events module is essential for implementing event-driven patterns in Node.js applications, such as handling asynchronous operations, event-based communication, and building reactive systems. It provides a flexible and powerful mechanism for decoupling components and handling complex workflows based on events and reactions.
📫 Business - jawadrana2015@gmail.com The events module in Node.js provides an event-driven architecture that allows objects to emit named events that can be listened to by functions (listeners). This module is crucial for implementing event-driven programming in Node.js, where actions or occurrences are treated as events that trigger reactions or responses. Here's an overview of the events module and how to use it in Node.js: EventEmitter Class: The events module includes the EventEmitter class, which serves as the foundation for creating and managing events and event listeners. Creating Custom Events: You can create custom events by extending the EventEmitter class and using the emit() method to emit events. Listening to Events: You can listen to events using the on() method to register event listeners. Passing Arguments with Events: You can pass arguments along with events to provide additional context or data to event listeners. let events = require("events") let eventEmitter = new events.EventEmitter() function ringBell(){ console.log("ring ring ring") eventEmitter.emit("welcome","Welcome to our shop") } eventEmitter.on("doorPass",ringBell) eventEmitter.on("welcome",function(msg){ console.log(msg) }) eventEmitter.emit("doorPass") The events module is essential for implementing event-driven patterns in Node.js applications, such as handling asynchronous operations, event-based communication, and building reactive systems. It provides a flexible and powerful mechanism for decoupling components and handling complex workflows based on events and reactions.