Login Register

EventEmitter

Class: EventEmitter

The EventEmitter class is defined and exposed by the events module:

const EventEmitter = require('events');

All EventEmitters emit the event 'newListener' when new listeners are added and 'removeListener' when a listener is removed.

Links:

https://nodejs.org/dist/latest-v5.x/docs/api/events.html#events_class_eventemitter

doc_Nodejs

2025-01-10 15:47:30

Comments

Leave a Comment

Please login to continue.

Popular Articles

EventEmitter Stable Class Class Overview class EventEmitter { constructor(isAsync?: boolean) emit(value?: T) subscribe(generatorOrNext?: any, error

eventemitter.once() emitter.once(eventName, listener) Adds a one time listener function for the event named eventName. This listener is invoked only the next time eventN

eventemitter.getMaxListeners() emitter.getMaxListeners() Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults t

eventemitter.listeners() emitter.listeners(eventName) Returns a copy of the array of listeners for the event named eventName. server.on('connection', (stream) => { cons

eventemitter.on() emitter.on(eventName, listener) Adds the listener function to the end of the listeners array for the event named eventName. No checks are made to see