EventEmitter 类

EventEmitter 类由 node:events 模块定义和暴露：

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

import { EventEmitter } from 'node:events';const EventEmitter = require('node:events');

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

It supports the following option:

• captureRejections <boolean> It enables automatic capturing of promise rejection. Default: false.