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orkouolp
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node_js
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orkofarms.com
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18
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lib
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node_modules
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multer
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lib
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Editing: counter.js
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var EventEmitter = require('events').EventEmitter function Counter () { EventEmitter.call(this) this.value = 0 } Counter.prototype = Object.create(EventEmitter.prototype) Counter.prototype.increment = function increment () { this.value++ } Counter.prototype.decrement = function decrement () { if (--this.value === 0) this.emit('zero') } Counter.prototype.isZero = function isZero () { return (this.value === 0) } Counter.prototype.onceZero = function onceZero (fn) { if (this.isZero()) return fn() this.once('zero', fn) } module.exports = Counter
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