Created
April 6, 2020 15:12
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node.js event emitter demo (es6)
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/** | |
* events | |
*/ | |
const events = require('events'); | |
class Person extends events.EventEmitter{ | |
constructor(name){ | |
super(); | |
this.name = name; | |
} | |
} | |
let derek = new Person('Derek'); | |
let linus = new Person('Linus'); | |
let simone = new Person('Simone'); | |
let tom = new Person('Tom'); | |
let people = [derek, linus, simone, tom]; | |
people.forEach(person => { | |
person.on('speak', msg => { | |
console.log(`${person.name} said: ${msg}\n`); | |
}); | |
}); | |
derek.emit('speak', 'In Quantum Mechanics, if you know the Quantum State of a particle, that is it\'s wave function you can use the Schrodinger equation to calculate what that particle will do in the future.'); | |
linus.emit('speak', 'But it has basically zero competition in this price bracket, so we absolutely needed to take a look at it. Just like I need to tell you about our sponsor - Storyblocks!'); | |
simone.emit('speak', 'My track record isn\'t terribly impressive so far, but I have an angle grinder, and a welder, and I\'m not afraid to use them.'); |
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