jquery plugin boilerplate in coffeescript Javascript version is here https://gist.github.com/bunnymatic/1048060

jquery.my_plugin.js.coffee

$.myPluginDefaults =
  param1: 'default param1'
  param2: []

$.fn.myPlugin = (method) ->
  inArgs = arguments
  methods =
    init: (options) ->
      localSettings = $.extend({},$.myPluginDefaults, options);

  this.each () ->
    # Method calling logic
    if ( methods[method] )
      return methods[ method ].apply( this, Array.prototype.slice.call( inArgs, 1 ));
    else if ( typeof method == 'object' || ! method )
      return methods.init.apply( this, inArgs );
    else
      $.error( 'Method ' +  method + ' does not exist on jQuery.myPlugin' );