1.

What is EventEmitter in Node.js?

Answer»

EventEmitter class lies in the events module and is accessibly through the following syntax:

//IMPORT events module
var events = require('events');
//create an eventEmitter object
var eventEmitter = new events.EventEmitter();

In CASE an EventEmitter INSTANCE is facing error, it emits 'error' EVENT. When a new LISTENER is added, the 'newListener' event gets fired and when a listener gets removed, 'removeListener' event gets fired.


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