Emighter.js is a simple, and very limited, event emitter. It's only notable feature is that it is async-ok. That is to say, like Bork.js, if you define callbacks for event receivers, the emit chain will hold until that callback is called.
If you need more, for now at least, look elsewhere. No seriously, Emighter probably isn't for you.
If you insist, run this:
npm install emighter
Subscribing to emighter events is as basic as you would expect,
emitter.on 'foo', -> console.log 'Foo Called!' emitter.on 'bar', -> console.log 'Bar Called!'
But you also have the option to define a callback function, or explicitly define options.
# Implicit emighter.on 'foo', (done) -> console.log "I'm not going to callback" emighter.on 'foo', -> console.log "I'll never be called, because ^he^ is lazy." # Explicit emighter.on 'bar', (-> console.log "I'm explicitly async!"), callback: true emighter.on 'bar', console.log "I won't be called either :/"
And emitting events is also pretty basic, with one notable point. If the 2nd argument is a list, and the 3rd is a function, the 3rd becomes a callback and the list becomes a list of arguments to pass. See below..
# These examples do not define an emit callback. emighter.emit 'foo', 1, 2, 3 # Calls `fn 1, 2, 3` emighter.emit 'foo', , 2, 3 # Calls `fn , 2, 3` emighter.emit 'foo', 1, (->), 3 # Calls `fn 1, (->), 3` # This example defines an emit callback emighter.emit 'foo', [1, 2, 3], (->) # Calls `fn 1, 2, 3` emighter.emit 'foo', , (-> console.log 'Emitter done!') # Calls `fn()` # Note that additional arguments are added to the arg list. emighter.emit 'foo', , (->), 2, 3 # Calls `fn 1, 2, 3` emighter.emit 'foo', , (->), 1, 2, 3 # Calls `fn 1, 2, 3`
And i think that sums Emighter up for now. There are currently no extras, such as pattern matching namespaces, emitting multiple namespaces at once, and etc. Like i said, you probably don't want to use this library.
- Lee Olayvar <email@example.com>
The MIT License (MIT)
Copyright (C) 2012 Lee Olayvar <firstname.lastname@example.org>
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