Events & Listeners

Exemple avec le package IRC

yarn add irc
const { Client } = require('irc');
const client = new Client('irc.freenode.net', 'myIrcBot', {
channels: ['#wishtack']
});
client.on('error', message => console.error(`error: ${message}`));
client.on('connect', () => console.log('connected to the irc server'));
client.on('message', (from, to, message) => {
console.log(`${from} => ${to}: ${message}`);
});
client.on('pm', (from, message) => console.log(`${from} => ME: ${message}`));

EventEmitter

const EventEmitter = require('events');
const eventEmitter = new EventEmitter();
/* Listen to 'greetings' events. */
eventEmitter.on('greetings', name => console.log(`Hi ${name}!`));
/* Emit 'hello' event. */
eventEmitter.emit('greetings', 'Wishtack');