EventEmitter3


EventEmitter3 is a faster alternative to EventEmitter2 and the built-in
EventEmitter that ships within Node.js. It removes some features that you might
not need:

- Domain support.
- Thrown errors when there are no error listeners specified.
- That a newListener event is emitted when an event is emitted.
- No silly setMaxListeners, the function exists, but does nothing.
- No silly listenerCount function.. Just do EventEmitter.listeners(event).length

And adds some features you want:

- Emit events with a custom context without binding: EE.on(event, fn, context)
which also works with once EE.once(event, fn, context)

It's a drop in replacement of your existing EventEmitters, but just faster. Free
performance, who wouldn't want that?

The source of the EventEmitter is compatible for browser usage, no fancy pancy
Array.isArray stuff is used, it's just plain ol JavaScript that should even
work IE5 if you want to.

Installation

``bash
$ npm install --save eventemitter3
`
or as a component

`bash
$ component install eventemitter3
`

then

`js
var EventEmitter = require('eventemitter3');

// or

var EventEmitter = require('eventemitter3').EventEmitter;
``

For API methods see the official Node.js documentation:

http://nodejs.org/api/events.html