coffeescript boilerplate jQuery plugin

jquery.plugin.js.coffee

$ = jQuery
pluginName = 'test'

methods =
  init: (opts)->
    defaults =
      foo: 'bar'
      bar: 'foo'
    options = $.extend defaults, opts
    return @.each ->
      data = $(@).data pluginName
      if not data
        $(@).data pluginName,
          opts: options
          other: 'foobar'
      methods.put.apply @
  put: ->
    console.log @

$.fn[pluginName] = ( method ) ->
  if methods[method]
    return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ))
  else if typeof method is 'object' or not method
    return methods.init.apply this, arguments
  else
    $.error 'Method ' +  method + ' does not exist on jQuery.' + pluginName