var MyConstructor = function() { ... process.nextTick(function() {  self._continue(); });}; MyConstructor.prototype.__proto__ = EventEmitter.prototype; MyConstructor.prototype._continue = function() { // without the process.nextTick // these events would be emitted immediately // with no listeners. they would be lost. this.emit('data', 'hello'); this.emit('data', 'world'); this.emit('end');}; function(req, res, next) { var c = new MyConstructor(...); c.on('data', function(data) {  console.log(data); }); c.on('end', next);}