techpines/express.io — pull request #8 by pharcosyle (2013-02-03 05:21:47+00:00)
Title: Allow clientside 'emit' calls that have a callback but no data.

Pure socketio allows this:

socket.emit 'name', (junk) ->
...

but express.io will break unless you do

socket.emit 'name', {}, (junk) ->
...