Writing a jquery plugin in coffeescript - how to get "(function($)" and "(jQuery)"?

Question

I am writing a jquery plugin in coffeescript but am not sure how to get the function wrapper part right.

My coffeescript starts with this:

$.fn.extend({     myplugin: ->         @each -> 

Which creates the javascript with a function wrapper:

(function() {   $.fn.extend({       myplugin: function() {           return this.each(function() { 

but I want a '$' passed in like this:

(function($) {   $.fn.extend({ 

Similar for the ending I have... nothing in particular in coffeescript.
I get this in javascript:

})(); 

But would like this:

})(jQuery); 

Does anyone know how to achieve this with the coffeescript compiler? Or what is the best way to get this done within coffeescript?

Answer 1

The answer is that you don't need to call it like that in CoffeeScript -- your script is already safely wrapped in a closure, so there's no need for jQuery-passed-in-as-a-parameter-tricks. Just write:

$ = jQuery 

... at the top of your script, and you're good to go.

Answer 2

Unless you're using the --bare flag in the compiler, the

$ = jQuery 

solution is best. If you are, then with the new do keyword, you can write

do ($ = jQuery) ->    # plugin code... 

thus creating the desired scope while avoiding a mess o' parentheses.