Example of missing events. Inspired by http://howtonode.org/understanding-process-next-tick

missed-event-sample.js

var EventEmitter = require('events').EventEmitter;

// Constructor emits before client subscribed
function StreamLibrary(resourceName) { 
  // should use process.nextTick here to delay the firing of the event
  this.emit('start');
  // read from the file, and for every chunk read, do:        
  this.emit('data', chunkRead);       
}
StreamLibrary.prototype.__proto__ = EventEmitter.prototype;   // inherit from EventEmitter

// Somewhere else, someone is listening to these events:
var stream = new StreamLibrary('whatever');

stream.on('start', function() {
    console.log('Reading has started');
});