Questão 1307507

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var events = require('events');

var myEmitter = new events.Eventemitter();

const callbackA = () => {

-process.stdout.write('A')

-myEmitter.removeListener('event', callbackB);

};

const callbackB = () => {

-process.stdout.write('B')

-myEmitter.removeListener('event', callbackA);

}

const callbackC = () => {

-process.stdout .write('C')

}

myEmitter.on('event', callbackA);

myEmitter.on('event', callbackB);

myEmitter.on('event', callbackC);

myEmitter.emit('event');

myEmitter.emit('event');